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MGMT 303 Principles of Management Final Exam

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MGMT 303 Principles of Management Final Exam

MGMT 303 Principles of Management Final Exam – Set 1

(TCO1) When the dean of the college of business downsized the college from five departments to four departments, the dean primarily was performing the ____ function of management. (Points : 2)

(TCO 2) State supported universities receive money from state tax payers. Harvard University’s endowment is so large that Harvard is guaranteed significant income just from the interest the fund generates. The ____ dimension of these competitors is different. (Points : 2)

(TCO 2) The expiration of a pharmaceutical drug patent allows generic drug makers to introduce the same chemical compound under a different name and at lower prices. This is an example of ____ for the developer of the original drug. (Points : 2)

(TCO3) New York passed a law requiring no smoking in bars and restaurants. Owners who pressure bartenders and waiters to sell to people who are smoking in order to keep profits high are taking a(n)____ stance toward social responsibility. (Points : 2)

(TCO4)��Coca-Cola is based out of Atlanta but reaches into hundreds of countries. The product is locally packaged, but the cola inside is essentially the same throughout the world. Coca-Cola is edging closer to being a(n) ____ business. (Points : 2)

(TCO4) The growth of multinational corporations has left little room for distinction. Any perceived competitive advantage is quickly copied. However, an area for competitive advantage remains in the level of ____ organizations attract, motivate, and retain. (Points : 2)

(TCO5) The ____ of Applebee’s is to gain “weekly repeat guests through providing surprisingly friendly hospitality, superior quality food, and world class service and value.” (Points : 2)

MGMT 303 Principles of Management Final Exam – Set 2

(TCO1) A CEO of a local newspaper has noticed that the advertising and subscription revenue has been decreasing. The CEO sets a goal of stopping the decline. The CEO is engaged in

(TCO4) Coca-Cola is based out of Atlanta but reaches into hundreds of countries. The product is locally packaged, but the cola inside is essentially the same throughout the world. Coca-Cola is edging closer to being a(n) ____ business.

(TCO4) Eric, an American, is an executive coach at Boeing. One of the executives he coaches is from India. Their diverse backgrounds add variety and create more solutions for management challenges. This illustrates the ____ argument.

(TCO5) The ____ of Applebee’s is to gain “weekly repeat guests through providing surprisingly friendly hospitality, superior quality food, and world class service and value.”

(TCO5) GE competes in industries ranging from medical devices to appliances to television networks. GE’s mixed strategy is an example of ____ strategy.

(TCO6) Jay wants to start a new business. With which of the following methods of starting a new business will he pay a share of the income from the business in return for the use of such things as trademarks and business formulas?

(TCO7) Sears has departments for clothing, tools, jewelry, and home goods. This is an example of departmentalization by

(TCO7) Andrea had worked in the marketing department for 27 years. She knows the history and successes of the office better than any other employee. When change is suggested, she is reluctant because she remembers accomplishments related to the current way of doing things. As a result of ____, she is resistant to change.

(TCO8) Fairway Green Inc. has added a lucrative retirement plan for its employees that includes medical benefits for retirees. These benefits target which level of need in Maslow’s hierarchy?

(TCO8) A mid-level manager has power within an organization due to the management position she occupies. This kind of power is known as ____ power.

(TCO9) You are a member of a self-managed team; the team has been experiencing interpersonal conflict among its members. Which of the following techniques could you use to eliminate the interpersonal conflict that is occurring within the self-managed team?

(TCO10) The credit crisis and the Federal Reserve’s response to it faced criticism from Congress. The Treasury Department requested a review of the central bank’s structure and governance. There is now broad support for auditing the Fed using the Government Accounting Office. The change in the economic and political environment of the Fed means the Fed needs to adapt its ____ control.

MGMT 303 Principles of Management Final Exam – Set 3

(TCO1) Discuss the functions of management. Which function of management is the most important? Support your answer.

(TCO2) In order to be effective and efficient, CEOs must monitor both the internal and external environments. Is it more important for the CEO to monitor the organization’s external or internal environment? Why?

(TCO3) You have recently been assigned as the ethics officer for your organization, as part of your responsibilities you have been asked to write a code of ethics. Discuss the three areas of special concern for managerial ethics that you will need to address specifically in the code of ethics.

(TCO4) There are several characteristics that an organization needs to possess to be considered a multicultural organization. Describe what a multicultural organization will look like using these characteristics.

(TCO5) Discuss a time in your professional or personal life when you had to implement a reaction plan. How did that plan differ from a contingency plan?

(TCO6) If you were considering starting you own business, what are the four major types of information would you include in your business plan?

(TCO7) Define the term reengineering. Discuss why an organization might need to engage in it.

(TCO8) Briefly explain what is meant by objective and judgmental performance evaluation. Discuss two methods of judgmental evaluation.

(TCO9) As a manager, in what types of situations should you use written communication? Briefly discuss the reasons why written communication would be best in these situations.

(TCO10) In your opinion, which two characteristics of effective controls are the most important? Why?

(TCO2) Compare and contrast the sociocultural and the political-legal dimensions of the general environment, with particular attention to how forces in one could affect the other.

(TCO3) Discuss the notion of social responsibility. Discuss how an organization is impacted when its adopts socially responsible practices.

(TCO4) Assume you accepted a transfer with your company to move overseas as a manager within the company’s new international division. Discuss the general environmental challenges of international management that you will face in the global environment that you did not face in the domestic environment?

(TCO5) The CEO of your organization has developed two potential plans to help the organization cut costs. The CEO has asked you to form a group; the members of the group are to represent a cross-section of all the departments within the organization. The goal of the group is to discuss and decide which of the two proposed plans you should implement …..

(TCO5) Describe the job characteristics approach to job design and explain how it is related to job enrichment and the creation of work teams.

(TCO8) Phil W. supervises a group of very competent workers. These employees are involved in a routine task, and the company has written standard operating procedures to cover most of the operation. Phil is trying to decide what leadership style…..?

(TCO9) You are the plant manager at Acme Plastics. You are running two shifts, a day shift and an evening shift. Before the day shift leaves each day, the workers must get an adequate supply of raw materials from the warehouse for the evening shift to use. On several occasions, they have failed to do so. By the time the evening shift gets to work,…..?

#MGMT 303 Principles of Management Final Exam

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MG 360 Midterm Examination Answers

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Select Ture and False From below Questions:

1. It is important to evaluate all financial decisions by measuring how they affect a firm’s stock price, hence ensuring maximization of shareholder wealth.

2. One advantage of organized stock exchanges is increased stock price volatility resulting from the efficient exchange of pricing information.

3. Real assets are tangible, whereas financial assets merely reflect claims for future payment on other economic units.

4. If two companies have the same revenues and operating expenses, their net incomes will still be different if one company finances its assets with more debt and the other company with more equity.

5. If a company’s cash balance increases during the year, and the company also reports positive net income, then the company’s retained earnings balance must increase.

6. A car manufacturer offers either $2,000 cash back or zero percent financing for 5 years. A rational consumer will always take the cash back because money received today is worth more than money received in the future.

7. If an asset is sold for a price above its book value, the difference is considered taxable income to the firm.

8. Equity is a measure of the monetary contributions that have been made either directly or indirectly on behalf of the owners of the company.

9. The total assets of a firm are financed with liabilities and stockholder’s equity.

10. A firm’s cash borrowing needs can be reduced if its inventory turnover rate can be increased, other things remaining constant.

11. Profitability ratios are distorted by inflation because profits are stated in current dollars and assets and equity are stated in historical dollars.

12. Operating profit is essentially a measure of how efficient management is in generating revenues and controlling expenses.

13. When the inflation rate is zero, the present value of $1.00 is identical to the future value of $1.00.

MULTIPLE CHOICE

1. If an investor is said to be “risk averse” then that investor ________.

a. will not be induced to take on any risk

b. will only take on the least risk possible

c. will only take on additional risk if they expect to be compensated in the form of additional return

d. is not behaving in a typical manner

2. A corporation’s capital losses can be carried back three years and, if any loss still remains, it may be carried forward ________.

a. 1 year

b. 3 years

c. 5 years

d. 7 years

3. Which of the following are tax-deductible for a corporation?

a. common stock dividends

b. interest expense

c. preferred stock dividends

d. all of the above e. both A and B

4. Which of the following will likely result in a greater use of external funding?

a. higher corporate profits and higher interest rates

b. lower corporate profits and lower interest rates

c. higher corporate profits and lower interest rates

d. lower corporate profits and higher interest rates

5. The real rate of return is the return earned above the ________.

a. default risk premium

b. risk-adjusted return

c. inflation risk premium

d. variability of returns measured by standard deviation

6. Company A and Company B both report the same level of sales and net income. Therefore, ________.

a. both A and B will report the same Earnings Per Share

b. both A and B will report the same Gross Profit Margin

c. both A and B will report the same Net Profit Margin

d. both A and C are true

7. Investment A has an expected return of 15% per year, while investment B has an expected return of 12% per year. A rational investor will choose ________.

a. investment A because of the higher expected return

b. investment B because a lower return means lower risk

c. investment A if A and B are of equal risk

d. investment A only if the standard deviation of returns for A is higher than the standard deviation of returns for B

8. A short-term creditor would be most interested in

a. profitability ratios.

b. asset utilization ratios.

c. liquidity ratios.

d. leverage ratios.

9. A quick ratio much smaller than the current ratio reflects

a. a small portion of current assets are in inventories.

b. a large portion of current assets are in inventories.

c. that the firm will have a high inventory turnover rate.

d. that the firm will have a high return on assets rate.

10. The residual income of the firm belongs to

a. creditors.

b. preferred stockholders.

c. common stockholders.

d. bondholders

11. The major advantage of corporations relative to proprietorships and general partnerships is that

a. corporations are simpler to form.

b. corporations receive preferential tax treatment from the federal government.

c. owners of corporations enjoy voting power.

d. owners of corporations enjoy limited liability.

e. None of the above are major advantages of corporations.

12. Assuming a 34% tax rate, depreciation expenses of $300,000 will

a. reduce income by $102,000.

b. reduce taxes by $300,000.

c. reduce taxes by $102,000.

d. have no effect on income or taxes since depreciation is not a cash expense.

13. Inflation has it major impact on which of the following balance sheet areas?

a. inventory and accounts payable b. plant & equipment and long-term debt

c. plant & equipment and inventory d. interest expense and marketable securities

#MG 360 Midterm Examination Answers

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MBA530 (discussions+case Analysis+mid term & final exam) full course

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MBA530 (discussions+case Analysis+mid term & final exam) full course

saint MBA530 module 1 discussion latest 2016 june

Module 1 Discussion

1. After reading Hofstede’s dimensions of cultural differences in Chapter 2 (pages 40-44) and looking up and reviewing near the bottom of Geert Hofstede’s web page (http://www.geert-hofstede.com/), describe a significant difference between cultures that you have witnessed. Use the Geert Hofstede comparison tool (at the link below) to compare the two cultures in your example and describe the relative merits of the different approaches in an organizational situation.

2. Compare and contrast two cultures using information contained at http://www.geert-hofstede.com/hofstede_dimensions.php (If the Hofstede website is not working, please do your best with the summary information in the book, or other sources you may find).

3. Use Saint Leo University’s core value of integrity as the foundation to form anopinion concerning whether the developing global economy will cause ethics and social responsibility to become more similar or more distinct across cultures? Be certain to explain why and how and provide examples.

saint MBA530 module 2 discussion latest 2016 june

Module 2 Discussion

For this module, you will use what you learned in Chapter 3 of the textbook and expand your critical thinking about the differences in people and how to appreciate and effectively manage these differences in the workplace.

1. Take the abbreviated (and less accurate) Myers-Briggs test. Reveal your MBTI type in your response and describe the following scenarios: a. An organizational situation (job function, event, team assignment, etc.) where your personality type could be at a disadvantage (real world or hypothetical) b. A situation where your personality type might be an advantage (real world or hypothetical) c. Based on your MBTI, how you learn best?

2. Respond to the following two questions about negative effect and self-monitors: a. Imagine that you have a person with negative affect in your organization. What might be a positive contribution that this person could make in a group where everyone else has positive affect and similar backgrounds? b. What contributions can high self-monitors make in organizations? Low self-monitors?

When you answer the personality part of this question, make sure that you have viewed the module material, including ideas on how to think about where your personality type is at an advantage or disadvantage (i.e., the Nurse MBTI example) and the definition of negative affect! And, with respect to how you learn best, consider the MBTI introvert/extravert differences (page 94) and “You 1.2” from Chapter 1, Module 1.

saint MBA530 module 3 discussion latest 2016 june

Module 3 Discussion

This module’s discussion will help you build your perspective of human motivation and equity theory (Chapter 5), and link this new understanding to performance considerations that are introduced in Chapter 4.

1. In your current (or previous) organizational role, are you motivated by lower or higher-order needs and motivators or hygiene factors? Discuss and explain which specific needs and Herzberg factors seem to be most important to you? Also use the theories presented in Figure 5.2 and Table 5.2 to explain your primary needs and motivators.

2. Reflect on the complex factors that go into job satisfaction and performance (pages 126-130) and integrate the following considerations into your answer. a. Has job satisfaction generally led to higher performance? Or, has higher performance led to job satisfaction? Has this varied by situation? b. To the extent that job satisfaction has led to the greater performance, what has been the most important source(s) of that satisfaction? Have the most important areas been the Social environment, money, health benefits, physical environment, facilities, job location, or perks? Explain your reasoning.

3. In your organization, what inequity affects people the most? Which textbook method seems to be used to resolve that inequity? What ways are people finding to change inputs and outputs or do they leave the organization? Alternatively, are the people just living with the inequity and still meeting organizational goals? Explain.

NOTE: Remember that equity compares an individual’s specific effort-reward ratio against other organizational members or people with comparable skills, location, job conditions, etc. Even when there is wage (or other) dissatisfaction, the perception of inequity is less well-founded when the groups are not comparable in the most important ways. If you stretch the limits of comparability far enough, you can easily find examples that will make you feel both lucky and cheated, and many people make that choice based on personality factors like positive vs. negative affect.

saint MBA530 module 4 discussion latest 2016 june

Module 4 Discussion

1. While reflecting on Chapter 13, explain and analyze the issues that cause the most significant conflict in your personal life or work environment.

2. Use textbook terminology to analyze a conflict or repeating pattern of conflict that you have witnessed or unfortunately participated in. Feel free to disguise your comments to maintain privacy. a. Which of the causes listed in the book were at the root of the conflict? b. Which form or forms of conflict were displayed? c. If interpersonal conflict was involved what defense mechanisms were manifested (Table 13.2) and did you observe these defense mechanisms in use? d. Describe effective and ineffective conflict management techniques that were used during this conflict and the conflict management styles demonstrated. In the end, did the conflict turn out to be dysfunctional or functional?

saint MBA530 module 5 discussion latest 2016 june

Module 5 Discussion

This module’s discussion is centered on the material in Chapter 9 – teamwork.

1. Describe the most effective group or team of which you have been member? What factors made the group or team effective? In your answer, consider both individual factors in part 2 of your textbook (e.g., values, motivation, feedback/learning, etc.) and group factors in Chapter 9, such as diversity (pages 331-332), the group characteristics in Table 9.1, and the group behavior concepts on pages 317-319.

2. What are the most significant barriers to teamwork and to empowerment that you have experienced and why were these barriers important? Consider trust and other factors introduced during the interaction part of this module.

saint MBA530 module 6 discussion latest 2016 june

Module 6 Discussion

This module’s discussion is oriented around the material in Chapter 11 and also draws on the concepts from Chapters 10 and 12.

1. Using the dimensions of empowerment in the book (pages 412-417), analyze and describe the degree to which people in your work environment are empowered. Then, review the first box in Figure 12.3 and describe the approach your supervisor or manager uses when making key decisions. Considering the article link in this module and explain if there is a “team of rivals” present? Finally, with respect to both participation in decision-making and team member empowerment, what strategies would you change if you were the manager of your or another organization? Consider all of Figure 12.3 and pages 366-368 in Chapter 10.

2. Do you think of yourself as powerful, powerless, or a little of both? Explain your basis for these perceptions? In your answer integrate the specific symbols of power in the textbook (pages 403-404).

3. Who is the most powerful person you know personally? What makes this person so powerful? Does this person’s power use empowerment as a tool or do they make all the decisions? In your answer use French and Raven’s five specific interpersonal forms of power (pages 397-398), and the textbook’s addition of “information power” (page 398) to assist you in your analysis.

saint MBA530 module 7 discussion latest 2016 june

Module 7 Discussion

At this point in the course, you have many things to keep in your mind about organizational behavior. Chapter 14 addresses job design to the organizational behavior model.

As Chapter 14 implies, models are often oversimplified and leave out the complicating factor of individual differences (refer back to Figure 3.1 on page 83). Herzberg pointed out that not every job or person is a fit for enrichment. Businesses and their strategies differ and the kinds of skills, procedures, and behavior required on the factory floor is quite different from those required for a leading-edge design shop. In addition, people with the same abilities and personalities may be at different levels in terms of satisfying their needs (e.g., Maslow’s hierarchy). It should be no surprise to you that both job and organizational design are situational and interdependent with many other concepts involved in the “management of human energy.”

1. In either designing the job, or in hiring to fill the job, does your organization consider any of the individual factors that might influence success? Explain your answer and consider the following factors: – Cultural differences in the people (Chapters 1 and 2) – Personality factors like MBTI type, conscientiousness, locus of control, and hardiness – Where a person is in satisfying their higher- and lower-level needs (Chapter 5)

2. In your organization, are there any jobs that appear to have been successfully designed (either initially or as they have “evolved”) using ideas like those described in the textbook? Anchor your comments in the achievement of the three critical states described on page 525, and in the achievement of “engagement” as described on pages 526-527.

3. How would you describe the organization you work for on each of the basic design dimensions (pages 557-558)? What changes in these dimensions have you seen in your organization due to pressures for improved cost/effectiveness or to meet other changes in the environment/competition?

saint MBA530 module 8 discussion latest 2016 june

Module 8 Discussion

Once again, we can use our discussion as a place to try integrating separate topics. In this case we will integrate organizational culture and change. Note that the Ralph Sink article and Netfix slide deck are relevant to these challenging and important issues.

1. Suppose you wanted to change your organization’s culture. What sort of resistance would you expect from employees? How would you deal with this resistance? To what extent is culture manageable? Changeable?

2. Moving from cultural change (Question 1) to general change, answer the following questions. Can organizations stop resistance to change? If so, how? Does organizational culture have a role in significant change? Explain the interaction between culture and change?

3. At the end of Chapter 15, the second cautionary note (page 577) suggests that a dysfunctional personality manifested by a Chief Executive may create the same dysfunctional culture for the organization. Thinking about any organization in your past, have you seen evidence that a key leader has been partially responsible for one or more of the listed dysfunctional symptoms? Or conversely, have you seen a CEO who has been responsible for the symptoms of a strong and functional culture? Did this influence come through artifacts, values, or assumptions (page 592) and/or through any of the five leader roles identified by Edgar Schein (pages 601-604)? Explain in detail.

saint MBA530 module 3 case Analysis 1 latest 2016 june

You must select and prepareone of the two cases listed below.Click here for instructions for analyzing and answering a case. These instructions can also be accessed via the “Case Preparation” link under Course Home.

•Case 1, Chapter 2: Netflix: Push and Pushback in Streaming Video

•Case 2, Chapter 5: Compensation Controversies at AIG

Submit Case Analysis 1 as either a Word (.docx) or Rich Text Format (.rtf) documentno later than Sunday 11:59 PM EST/EDT. (This Dropbox basket is linked to Turnitin.)

saint MBA530 module 5 case Analysis 2 latest 2016 june

•Case 1, Chapter 9: Smart Phones: Achieving Success in Virtual Teams

•Case 2, Chapter 13: Customer Service at Nordstrom: A Way to Mitigate Potential Conflict

Submit Case Analysis 2 as either a Word (.docx) or Rich Text Format (.rtf) document

no later than Sunday 11:59 PM EST/EDT. (This Dropbox basket is linked to Turnitin.)

saint MBA530 module 7 case Analysis 3 latest 2016 june

•Case 1, Chapter 11: Oracle’s Larry Ellison: A Profile of Power, Influence, and Dominance

•Case 2, Chapter 14: Alternative Work Arrangements: What Does the Future Hold?

Submit Case Analysis 3 as either a Word (.docx) or Rich Text Format (.rtf) documentno later than Sunday 11:59 PM EST/EDT. (This Dropbox basket is linked to Turnitin.)

saint MBA530 module 4 mid term exam latest 2016 june

1. Question :

Explain why it is important to study organizational behavior.

Question 2. Question :

What is the difference between objective knowledge and skill knowledge?

Question 3. Question :

Briefly discuss the issues an organization would want to consider or understand if it were interested in a business venture within China.

Question 4. Question :

Using the five personality characteristics identified in Chapter 3 as important for understanding organizational behavior, describe an individual who would most likely be a strong performer.

Question 5. Question :

Briefly explain the ABC model and provide an example of each model element.

Question 6. Question :

Maslow and Herzberg approach the study of motivation somewhat differently, but there are also similarities in their ideas. Compare and contrast their views of motivation.

Question 7. Question :

Is McGregor’s Theory Y more appropriate given today’s issues of managing organizational behavior? Explain.

Question 8. Question :

What are the characteristics of effective goals?

Question 9. Question :

What are some of the differences between Type A and Type B personalities?

Question 10. Question :

What are the structural factors that cause conflict in an organization?

saint MBA530 module 8 final exam latest 2016 june

Question 1. Question :

Distinguish between and provide examples of task and maintenance functions of groups.

Question 2. Question :

What are advantages and disadvantages of group decision making?

Question 3. Question :

Identify and briefly discuss the major sources of intergroup power within an organization?

Question 4. Question :

What are the major sources of interpersonal power according to French & Raven?

Question 5. Question :

Briefly explain House’s path-goal theory of leadership.

Question 6. Question :

Distinguish between job enlargement and job enrichment, and provide an example showing any differences in these two job design approaches.

Question 7. Question :

Identify four bases of departmentalization or differentiation.

Question 8. Question :

How can corporate leaders (the CEO and other top officers) shape, communicate, and reinforce organizational culture?

Question 9. Question :

Briefly explain anticipatory socialization and how the organization can facilitate one’s entry into the organization.

Question 10. Question :

What are the differences and similarities of management by objectives (MBO) and role negotiation, and process consultation and leadership training and development?

#MBA530 (discussions+case Analysis+mid term & final exam) full course

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we-donaldpowers-blog · 8 years ago

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MBA 5401 Analyze Case Study I-4

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upporting Mobile Health Clinics: The Children’s Health Fund of New Analyze the case study, and·York City” (on pp. 157-165in the textbook). Consider·develop the conclusions, recommendations, and implications. the implementation challenges in the case and the technologies used to meet them, along with the finalquestions posed at the end of the case. Summarize your findings in a two-page paper·(last paragraph on p. 165) using proper APA formatting.

Supporting Mobile Health Clinics: TheChildren’s Health Fund of New York CityThe Children’s Health FundThe Children’s Health Fund (CHF) develops and supportsa national network of 22 programs and two affiliates in 15to 17 states in the United States and the District ofColumbia. The mission of the CHF is to provide comprehensivehealth care to the nation’s most medicallyunderserved children, from birth up to age 24. In-personprimary health care, mental health, and oral health servicesare delivered by teams of doctors, nurses, dentists,psychologists, social workers, and nutritionists at morethan 200 service sites across the United States inpartnership with pediatric departments and specialists inaffiliated academic medical centers or Federally QualifiedHealth Centers (FQHC).The CHF’s integrated approach to health care isconsistent with the concept of an “enhanced medicalhome” in which continuity of care is ensured via coordinationacross multiple healthcare providers and specialties.In the United States, the Medical Home concept is beingadopted as one aspect of health care reform to ensure ahigh quality standard of care that also seeks to increaseefficiencies and reduce costs for acute care. This type ofintegrated health care delivery is enabled by health informationtechnology (HIT)—not only computer software butalso communications networks.1The cofounder and president of the CHF, Dr. IrwinRedlener, received his M.D. from the University of Miamiin 1969. But his life mission for bringing medical care tounderserved children reportedly began when he was amedical resident in pediatrics at the Children’s Hospital ofDenver and saw a poster for VISTA (Volunteers in Serviceto America) with the words: “If you’re not part of the solution,you’re part of the problem.” Dr. Redlener’s quest tobecome part of the solution began with delivering medicalcare in Lee County, Arkansas, then working on earthquakerelief in Guatemala, followed by serving as medical directorfor USA for Africa, and this poster is hanging in hisoffice today.2An important motivation in my life has been workingwith kids whose situation makes them vulnerablefor reasons out of their control. They are desperatelyill, or living in extreme poverty, or disconnectedfrom medical care. I feel most energized by trying tohelp children who have the fewest resources.—Irwin Redlener3In 1987, Redlener cofounded the Children’s Health Fund(CHF) in New York City. Its initial focus was on pediatriccare for homeless kids, and his cofounder was singer/songwriterPaul Simon. While working for USA for Africa, hehelped solicit the help of other recognized entertainers,including Joan Baez, Harry Belafonte, Lionel Richie, andMichael Jackson. When he learned that Paul Simon wasinterested in doing something for the homeless, he reachedout to him:I was working for USA for Africa, setting up thegrant office in New York City. Paul Simon, who wason the We Are the World record, wanted to do somethingfor the homeless. We visited a number ofwelfare hotels. In the Hotel Martinique [in TimesSquare] a thousand children and their families werewarehoused. Somebody suggested that we should geta van and bring doctors there.—Irwin Redlener4That was the beginning of what would become CHF’snational network of Children’s Health Projects (CHP), inwhich health care is delivered via doctors, nurses, and Copyright © 2010 by Carol V. Brown, Distinguished Professor,and Kevin Ryan, Distinguished Associate Professor, Stevens Institute ofTechnology.1The Medical Home concept, which originated with the AmericanAcademy of Pediatrics in the 1960s, is today being considered as a meansto reinvent primary care in the United States. One of the current barriersto implementation is the fee-for-service reimbursement model within theUnited States.2As reported by Tom Callahan, “Mobilizing for Kids,” Diversion forPhysicians at Leisure (April 15, 2004): 30–32. 3 Ibid.4 Ibid. The “We Are the World” record was made to raise funds for theUSA for Africa’s famine relief efforts. For example, see: http://www.inthe80s.com/weworld.shtml.158 Part I • Information TechnologyEXHIBIT 1 CHF National NetworkCopyright © the Children’s Health Fund. Reproduced with permission. All rights reserved.other professionals in an RV-size mobile medical clinic(MMC) that is driven to locations where the people arewho need it—such as city shelters for homeless families.The flagship program with the first MMC was launched inNYC in 1987, and by 2009 the program had beenexpanded to cities and some deep rural areas withinCHF’s growing national network of clinics. The clinicsare supported by 41 state-of-the-art MMCs (32 medical, 3mental health, 5 dental, 1 public health field office, and 1health education) operating in different programs acrossthe country (see the map in Exhibit 1). By 2009, some hadbeen in service for many years and while not obsolete,lacked some of the newest features, such as modularnetwork cabling and upgraded electrical generators; 7 newMMCs were in some stage of procurement in June 2010.The payments for the medical care provided by CHFprimarily come from four sources: private individual andcorporate donation, congressional aid, and two governmenthealth insurance programs that support children living inpoverty. These programs are Medicaid and the StateChildren’s Health Insurance Program (SCHIP). Medicaidinsures kids whose parents earn little or no money; thefederal government pays part of the costs, but programs areadministered and partially funded by state governments.SCHIP, a newer federal program initiated in 1997, insureschildren in families that earn too much to qualify forMedicaid, but too little to afford private health insurance. InFebruary 2009, President Obama signed a bill thatcontinues funding for SCHIP ($32 billion over the next 4.5years).Mobile Medical Clinics at the Children’sHealth FundCHF’s Mobile Medical Clinics (MMCs) are housed in 36- to44-foot long blue vans, designed to provide a full range ofpediatric primary health care including preventive care (e.g.,childhood vaccinations), diagnosis and management of acuteand chronic diseases, mental health, dental, and health educationservices. In addition to care provided in the mobileclinics, care is provided at stationary clinical sites located inshelters, schools, and community centers, and traditionalhealth clinics (e.g., the South Bronx Health Center forChildren & Families in NYC). The mobile clinics routinelyvisit low-income neighborhoods and homeless and domesticviolence shelters to provide medical services, but MMCsSan Francisco Peninsula, CALos Angeles , CAIdaho Montrose, COArkansasChicago, ILPhiladelphia, PACHF NationalOffice, NYNew York CityProgramsLong Island , NYNew JerseyWashington D.C.West VirginiaMemphis, TNMississippiMississippi Gulf CoastOrlando, FLNew Orleans, LAPhoenix, AZSouthern Arizona, AZAustin, TXDallas, TXChildren’s Health Fund National OfficeChildren’s Health Fund ProgramsAffiliates–Special InitiativesBaton Rouge, LASouth FloridaCase Study I-4 • Supporting Mobile Health Clinics: The Children’s Health Fund of New York City 159have also been deployed to provide medical services inresponse to public health crises or emergencies, including the9/11 attacks on the World Trade Center, hurricanes Rita andKatrina in 2005, and the 2010 Gulf of Mexico oil spill.Two primary CHF principles are at the heart of thedesign of the MMCs:• To provide high-quality pediatric primary care aswell as mental health services, dental services, andsocial services to medically underserved populationswith children.• To operate in partnership with a high-quality localmedical institution, such as an academic medicalcenter or FQHC, to ensure access to other medicalexperts as needed as well as coordinated health carefor the local population.Access to reliable, affordable transportation is a major constraintfor those living in poverty at government-sponsoredlocations, as well as areas where there are few health careproviders, known as HPSAs (Health Professional ShortageAreas). To help remove this constraint for low-income andhomeless residents in New York and four other major areas,GlaxoSmithKlein provided a $2.3 million grant to supporttransportation funding in 2004: $35,000 on taxi rides and$20,000 on bus tickets for adults were spent by the DallasChildren’s Health Project (CHP) the prior year. In NewYork, this Referral Management Initiative had dramaticresults: specialist appointment compliance rose from 5 toabout 70 percent.5The medical home concept is based on the premisethat a returning patient will be supported by a trustedhealthcare team who knows the patient and has access todocumentation of his or her health history. Exhibit 25 Tony Hartzel, “Transportation a Vital Health Link,” The Dallas MorningNews (December 19, 2004).EXHIBIT 2 The CHF Medical Mobile Unit (MMU) ModelCopyright © the Children’s Health Fund. Reproduced with permission. All rights reserved. 160 Part I • Information Technologyshows a model of the MMC and its layout, with a separateregistration area and waiting room, a nurse’s station, andexamination rooms.The sides of the blue vans are painted (like“billboards”) to clearly signal that they are CHF units withqualified medical personnel onboard. On a given dayduring a given time period each week, the MMCs arescheduled to be at the same location with the same medicalpersonnel onboard.We don’t just show up like in an ice-cream man mode,give a shot and disappear. The protocol is that everyTuesday from X-time to Y-time the doctor is there.—Jeb Weisman, CIOProviding high-quality primary care from a mobile clinicdoes present some unique challenges for supporting thosewho are delivering the health care, such as:• Designing an environment which is consistent withand will support standard physician office and clinicprocesses. This includes providing the requiredspace and medical equipment to support high qualitydelivery of primary care, including sufficient, highqualityelectrical power.• Complying with regulatory standards such as thoseset forth by JCAHO (e.g., PC locations) and governmentlegislation (e.g., HIPAA laws for privacy andsecurity of personal health information).6• Supporting a mobile unit that operates at multiple,primarily urban, sites—each with its own uniqueenvironmental factors.• Providing computer and communications technologieswithin the MMC that are reliable anddependable, as well as off-site access to technicalsupport.Another important consideration is the overall cost foreach mobile clinic—including the initial costs for a stateof-the-artMMC as well as continuing operating costs. Themajority of the approximately $500,000 capital budget foreach MMC is allocated to the required medical equipmentand associated vehicle requirements (i.e., space, power,and transportation needs). Preventive care via a medicalhome should of course result in long-term cost savings forstate and federal payers as children receive immunizationsand regular health checkups that can avoid costly visitsto hospital emergency rooms, but these are difficult tomeasure. Given the national shortage in primary carephysicians, CHF’s association with a major medical centeralso means that MMC may be part of medical residents’formal training rotation, often in pediatrics or communitymedicine, as part of the medical team.Healthcare Information Systemsto Support Primary CareIn the United States today, it is still not unusual to findpaper-based record keeping in physician practices (referredto as ambulatory or outpatient practices). Two types offunctionality are provided in software packages developedand maintained by vendors who specialize in the healthcareindustry:• Practice Management Systems (PMS) supportadministrative tasks such as patient workflow andthe revenue cycle, with data including patient contactinformation, appointment scheduling, andpatient insurance plan information.• Electronic Medical Record (EMR) systems supportclinicians, such as patient diagnosis, treatment andphysician orders, with data including patient demographics(age, gender), family history information,allergies, medications, and clinical documentation ofdiagnoses, treatments, and outcomes for prior visitsand specialty referrals.By 2008, only 4 percent of physicians in ambulatory settingshad a fully functional EMR; 13 percent had a partiallyfunctional EMR; but 50 percent of those in larger practices(11 or more physicians) had partial or full EMR support.7Some vendors provide packaged solutions with PMSand EMR modules designed to exchange data with each other.However, since some of the clinical packages are designed tospecifically support certain types of care—such as pediatrics,OB/GYN, cardiac care, and so on—specialty practices inparticular may have purchased software from differentvendors. In addition, software that supports electronicprescription transactions to pharmacies and insurers hasrecently been widely adopted as this capability has becomerequired for reimbursements by government and otherinsurers. Investments in software packages to support clinicalprocesses in small practices (1–3 physicians) in particular willbe made at a much faster rate during the second decade of thiscentury due to financial incentives administered by Medicaidand Medicare to eligible physicians who have implemented 6JCHAO (Joint Commission on Accreditation of HealthcareOrganizations) is the accreditation body for healthcare organizations. TheHIPAA (Health Insurance Portability and Accountability Act) PrivacyRule governs all protected health information; the HIPAA Security Rulesets security standards for protected health information maintained ortransmitted in electronic form.7 2007 study by the Institute of Health Policy at Massachusetts GeneralHospital (MGH).Case Study I-4 • Supporting Mobile Health Clinics: The Children’s Health Fund of New York City 161certified electronic health record systems and reported specificmetrics for Meaningful Use beginning in 2011 under theHITECH Act.8The advantages of using computerized health informationsystems were recognized early on by the CHF. JebWeisman, the current CIO, initially joined the organizationin the late 1980s prior to the implementation of the firstMMC to lead the efforts to provide state-of-the-art supportfor the MMCs. Initially a home-grown system was developedand maintained.Given the way the transitional housing system for thehomeless worked at the time—there were enforcedmoves every 3 weeks and that sort of thing—it wasincredibly important that you had a real history.Some of these kids were being immunized half adozen times for measles, by the time they were 6 or 7because if something would show up, it is better togive them shots than not . . . . So you had as much asmedical over-neglect as under-neglect going on.Records are vitally important.—Jeb WeismanIn 1999, CHF partnered with a now defunct vendor todevelop specialized technology for the MMC environment.This system was then phased out in 2007 when CHF partneredwith another leading Electronic Health Record(EHR) software vendor: eClinicalWorks.9 Given the CHF’searly investment in custom software that supported the datacollection of detailed clinical data specifically for pediatriccare, Weisman’s team built in a similar data collectioncapability for use with the commercial software package.Having this detailed information in a standard formatenables high-quality patient–physician interactions on notonly the first but also subsequent visits, in addition to providingthe data needed for referrals. Medically underservedpopulations typically have higher levels of lead in theirbloodstreams, asthma, and other chronic conditions.10One of the record keeping challenges faced by allphysician practices is the integration of laboratory andimaging results with the rest of a patient’s health record.In a paper environment, the test results are typically faxedfrom the facilities performing and interpreting the tests tothe requesting physician, and then paper copies and film(such as x-rays or CAT scans) are filed in the patient’sfolder along with other hard-copy records. When testresults are not received in a timely manner, a nurse or otherstaff member typically makes a call to the test facility’sstaff and can receive the missing record in a relatively shorttime period. Today’s more sophisticated healthcareinformation system (HIS) solutions integrate electronicreports of test results with the patient’s record so that thephysician can quickly access all relevant data with thesame patient record interface.However, maintaining an accurate medical historyfor a patient who lives in poverty and may be residing in ahomeless shelter or other temporary housing is more complicatedthan for patients with a more permanent address.In cities and towns with CHF clinics, a patient served by aspecific clinic in a given neighborhood in the Bronx thismonth may be domiciled in a different shelter in a differentborough and show up at a permanent clinic or MMC in adifferent location in NYC the next month. To retrieve arecord from another clinic may require a phone call andfax capabilities.Both telephone and fax capabilities are therefore basicrequirements for not only retrieving missing data but alsoconsulting with other medical experts, and supporting patientreferrals to other clinicians, including specialists. Anideal solution to capture the patient data that have previouslybeen collected for the same patient—especially when thesame software package is being used at multiple clinics—would be to have it available in structured electronic form.Connectivity Needs to Support MobileMedical ClinicsThere are therefore two primary communications needsfor clinicians to deliver quality healthcare via a mobileclinic: (1) access to patient data previously captured atanother medical facility (or MMC) but not yet available inthe patient record system in the clinic and (2) access topersonnel at another medical facility for either an emergencyconsult or referral, or a more routine referral. In anideal world, all of the network requirements describedbelow for a mobile clinic environment would be satisfied.However, some unique challenges are associated withMMC service environments.• Network availability and reliability. The number 1networking requirement is that remote access to dataand people needs to be available. Yet the MMCs aredeployed mostly in dense urban areas—and sometimesin sparsely populated rural areas—that may8 The implementation of an HITECH Act, which is a portion of theAmerican Recovery and Reinvestment Act legislation signed into law byPresident Obama in February 2009, is overseen by the Office of theNational Coordinator for HIT within the U.S. Department of Health andHuman Services. An EHR is similar to an EMR, except it is designed toexchange data with other healthcare systems external to the healthcareprovider who owns it.9 Soon after this adoption date, eClinicalWorks was selected as an EHRvendor for the New York City Department of Health and MentalHygiene’s (DoHMH) Primary Care Information Project (PCIP).10 As reported in an interview of Irwin Redlener by Janice Lloyd, “‘KidsCan’t Wait’ for Health Care,” USA Today (May 21, 2009): 7D.162 Part I • Information Technologynot provide network availability or may not providereliable access to voice and data networks.• Data security. At a minimum, HIPAA requirementsfor data security must be met. User data must beencrypted at the database server level, and additionalencryption and “network tunneling” are needed forprotection of patient data at the network level.11• Easy to use with zero on-site support.Networking technologies in the MMCs are thereto support the high-quality delivery of pediatricprimary care. Since the highly trained and educatedmedical staff is not necessarily sophisticated inknowledge about networking technology andmaintenance of equipment, it is critical for the networkingsolution to be “push-button” technologyand require little infield maintenance andprovisioning.• Inexpensive to deploy and operate. The installednetworking equipment should not add significantexpense to the cost of an MMC. The network solutionsshould also be readily available and easy toacquire plus easy to install in the MMC.• Network throughput (data rate) and latency.The data rate must support the transfer of textbasedfiles (medical health records and patientreferrals). The transmission of high-density medicalimages (e.g., digital X-rays) requires muchhigher throughput rates and therefore provides adifferent challenge. Another critical requirementis to minimize network latency; large latencyresults in inefficiencies and possible confusion onthe part of the MMC staff (e.g., “Is the networkconnection still active or not? Why is it taking solong to load?”).Connectivity Solutions:What Workedand What Didn’tSince the launch of the first MMC in the 1987, severalnetworking solutions have been tried and newer technologieshave become available and affordable. Two differentwireless network solutions were tried, with mixed results.Satellite-Based AccessIn 2005, a number of MMCs were equipped withrooftop-mounted satellite antenna systems. These antennasystems were equipped with a setup function whichautomatically unfolds the antenna and raises the antennafrom a horizontal (“flat”) position to a position where theantenna is facing the sky. The antenna then performs ascanning operation to detect the strongest available satellitesignal and begins establishing a communications link withthe satellite. When the system is powered down, the antennafolds back into the original horizontal position. Althoughthese systems were expensive and designed for mobileoperation, they proved to be mechanically unreliable.You have these structural limitations to the system.Every day it goes up and down but unlike mom-andpopcasual use, we’re dealing with vital health careinformation and communications. Invariably, themechanical system breaks down—a gear strips, aconnector fails, or a circuit fries. We have had doctorsand nurses climbing on the roof to manuallylower the antenna system, and these are high-end,sophisticated devices . . . . Well, that is not good onmany levels, not the least of which alienates userstowards the technology.—Jeb WeismanThey also posed structural problems for the MMCs (due totheir weight). In some situations, the satellite communicationsalso had unacceptably large latency due to the natureand design of satellite communication systems.It is interesting how expectations get managed inthese kinds of environments. In terms of throughput orcapacity in a perfect world, most of the data that youare moving is simple structured textual data. So actuallyyou need very little bandwidth, but you needbandwidth without significant latency . . . . A 1.5Megabit satellite connection is way different from 1.5Megabit connections on a wired line or even inWimax, or whatever the flavor of the month is, in atraditional Ethernet-based system. The latency is akiller. It is deceptive for the end user: even if thethroughput is okay to move that image down, or tomove those data up, they don’t trust it—because ittakes longer to refresh than we are used to today athome or in the office. Do they step away and hopetheir data are refreshed when they are taking care ofthe patient, or do they stand there for twice as longwaiting for something to happen? Very often wirelesscommunication at the satellite level can make thingsworse than just going with the flow—which is to say‘we are here, we are in a box in the middle ofnowhere, and we just have got to manually write itdown and deal with it later.’—Jeb Weisman11 Tunneling is a networking technique that encrypts user data for securetransport over the public Internet.Case Study I-4 • Supporting Mobile Health Clinics: The Children’s Health Fund of New York City 163Cellular Wireless Networks—WirelessModem SolutionFirst piloted in 2004 and formally entered into service in2007, the MMC was equipped with a Sierra WirelessAirLink PinPoint X wireless modem that provided ThirdGeneration (3G) wireless service with a “fall-back” capabilityto 2.5G wireless service in areas where 3G servicewas not available. The advantage of this specific wirelessmodem was that it supported both 3G standards widelydeployed in the United States: both Universal MobileTelecommunications Service (UMTS) and cdma2000. Thepotential for 3G rates is in the range of several Mbps, sothis wireless solution provided the MMC with a high datarate to and from the Internet. However, the transmission ofpatient data requires cellular coverage and reliability at a“mission-critical” or “professional” level, but today’s generalpurpose wireless networks are designed for “consumer”levels. If the wireless coverage is not available andreliable, this solution can only be used to support MMCcommunications that are not mission critical.For the clinicians working in the mobile clinics,dependable and predictable wireless access to the Internetis more critical than achieving higher data rates. 3G andthe emerging 4G networks do have the required throughput(4G wireless networks are promising 100 Mbps) for transmittingmore than text-based data. However, what thesenetworks do not deliver is reliable and dependable coverage(i.e., network access) at the level required.A hybrid alternative that has been tried is to delaydata transmission from the MMC until there is access fromthe van to a wired broadband solution, such as in a communitycenter or school.Delayed Broadband Wired AccessIn this mode of operation, the MMC operates as a “storeand-forward”device: patient records, medical referrals, anddigital images are stored on an MMC server until wiredbroadband Internet access is available. A typical configurationis to have a wireless LAN (WiFi) connection via awireless router from the MMC to the broadband accesspoint into the other facility. The obvious disadvantages ofthis approach are the delay in accessing and transferringinformation, and the security of the wireless LAN link. Inaddition, the MMC is not always able to use a nearby thirdparty’swired network due to local restrictions on accessto its wired broadband connection or HIPAA securityconcerns.Many of these organizations or institutions, particularlyones that are city based, won’t allow you toinstall your own telecom infrastructure in their buildings.So we can go to shelters where they even oftenhave an Internet or network-based infrastructure andwe are not allowed to connect to it. Plus then we havesome problems around what I will generically refer toas a HIPAA Issue–we can’t just go through any oldnetwork . . . HIPAA rules are actually changing substantially—becomingmuch more restrictive, muchbetter prescribed and set out, and much more painfulif you violate them . . . . So when we look at the solutions,we have to make sure we can tunnel.—Jeb WeismanAsynchronous Multi-Master DatabaseReplication (AMMR)In the absence of a reliable, high-speed networking solutionto enable patient data transfers from the MMCs to thecentral server at the headquarters of the New York CHP inthe Bronx, a more hands-on solution has been adopted toenable (1) the integration of patient record data collected atmultiple sites and (2) provide a backup capability. But italso requires physical proximity of the servers in theMMCs to the CHP offices.Banks figured out years ago that if you could put ateller machine in a town in Montana, people would useit and you would make money on every transaction.But do you think there was telecommunications out tothat town? There was not. So how did it work? AMMR.At some point the cash machine could dial up in themiddle of the night, when rates were low, and send thedata up to Wells Fargo. It all got merged together, businessrules were applied, and then it sent back downinserts to the [ATM] database. [The ATM] knows whatit needs to know and makes it through another day,without real-time high bandwidth telecom.What happens here is that all the servers fromthe vans are physically brought in to a central locationso that there are X number of what we call thelaptop servers connected to the master or primaryserver. We press the button and it goes through akind of round robin, moves the data up to the masterfrom each one, applies business rules, aggregates thedata, and then copies the identical data set to everysingle one of those [servers]. We do it throughinserts; we are not actually copying 10 gigs of datadown to each one, so it is a very efficient process.And when you are done, each one of those devices isan exact working copy of the entire data set. It’s anelegant solution to an inelegant problem.—Jeb Weisman164 Part I • Information TechnologyOther Support Challenges and SolutionsThe IT infrastructure on the mobile unit includes a serverbuilt from a Panasonic ToughBook laptop (CF30) and anumber of client computers which are a lighter-dutyToughBook. They support a wireless Ethernet capability,but the recommended MMC solution is wired—because ofgreater throughput and more reliability:These generators—anywhere between 5 and 20 kilowatts—areunderneath the mobile units, and theyproduce electromagnetic radiations. You don’t get alot of wireless connectivity when you have got 20kilowatt generators standing under your feet . . . . It isa 36 foot van, and you are 20 feet (or 15 feet) fromthe server and you cannot make a wireless connectionthat is reliable—the power is too dirty . . . . Even thebest regulated generator will produce increasinglydirty power with a lot of harmonics and a lot ofbrownouts. Brownouts are the danger. In a spike, thething explodes, melts . . . you just buy a new one. Buta brownout slowly degrades the electronics in delicatemedical equipment. You don’t know that it isdying, and it begins to create false data or fails at anunexpected time. Plus you have got air conditionersand air filtration in the mobile unit, which have thesebig startup power needs. So what you have to do is toput at least a real time UPS in front of these thingsand preferably something like a line conditioner voltageregulator that pre-cleans it and then gets it to theUPS, because the UPS is for the most part not builtfor this degree of dirty power.Jeb WeismanInkjet printers also have to be used instead of laser printers—because laser printers can’t generally be used with a UPS thatfits in the mobile environment. Unfortunately, the operatingcost of an inkjet printer is higher.The CHF’s NYC office provides the initial on-site ITsetup and training for new MMC programs and ongoingremote help desk support. Most of the MMC teams supportedby CHF have gone 100 percent live with electronic recordkeeping for all of their patients within the first week. One ofthe reasons for the fast start-up is that the training team nowincludes a clinician who is an experienced user of the EMR:Our training team typically consists of me, another personon our staff—kind of an application specialist—and we typically take either a medical director or ahigh-level clinical provider from one of our projectswithin the network who has been using eClinicalWorksout in the field. That actually makes a huge difference.We always have members of the training team staywith [the MMC team], on-site, in clinic support.Usually they are there for the first afternoon of seeingpatients live with the system, and then also for the nextmorning. We try to split it that way so that we go tomore than one site—covering as many sites as possiblein case there are any technical or clinic process problems.One of the great things that has really worked sowell for us in our training is not separating outaccording to role during the training: we are not trainingall of our providers in a room by themselves, nottraining the registrar alone, or the nurses. They aredeveloping [their own] built-in tech support; they arelearning each other’s jobs and how to help each other.This is how a clinic really works and the trainingsimulates this.—Jennifer Pruitt, Director,Clinical Information SystemsMobile Health Clinics for Crisis ResponseIn 2003, Dr. Redlener also became the first director of theNational Center for Disaster Preparedness withinColumbia University’s Mailman School of Public Health.One of the goals of this center is to deal with the aftermathof major disasters and assess the impacts on high risk, vulnerablechildren and communities. Prior to that date, CHFhad already sent its MMCs to respond to crises related toHurricane Andrew (1992) and the 9/11 World TradeCenter attack in New York City (2001).The best choice for communications technologyfollowing a natural disaster is highly dependent on thecrisis situation. If cell towers and base stations previouslyavailable in the region have not been lost, theexisting commercially available cellular network can beutilized. However, this is the same network available forpublic cell-phone service, and following a disaster therecan be network overload due to an increase in calldemands by the public. Most wireless providers do notimplement a call-priority capability, so a mobile clinic’susage of the network will typically compete with callsfrom the public at large. In worse scenarios, there maybe no cellular network access available in the emergencyrelief area. The same may be said during otherpublic disruptions such as blackouts. In 2003, a largeportion of the United States lost electrical power.Within hours virtually all cell phone communications inNew York City had failed as uninterruptible powersupply batteries were depleted and generators failed orCase Study I-4 • Supporting Mobile Health Clinics: The Children’s Health Fund of New York City 165were inadequately sized for the scale of the outage. Apossible alternative, of course, is to use the MMC vansequipped with their own generators and with satelliteantennas.Just days after Hurricane Katrina hit New Orleans in2005, Redlener personally accompanied two mobilehealthcare units with a team of medics to provide vaccinationsand treat infections in the Gulf coast region. In theinitial weeks, they had treated more than 7,000 patientswhose doctors’ offices had been wiped out—either washedaway or flooded. The following year, a study by the centerreported that one in three children that were housed intrailers sponsored by the Federal Emergency ManagementAgency (FEMA) had at least one chronic illness, and thenumber of children housed in trailers in the Baton Rougearea were twice as likely to be anemic than children inNYC’s homeless shelters. The need for more ongoinghealth support for children was clear, and CHF helped toestablish and finance new mobile clinics in the Gulf port(Biloxi, Mississippi) and in the New Orleans and BatonRouge, Louisiana, areas.12The FutureBy early 2009, Dr. Redlener was on another quest: to buildawareness about the long-term health impacts on childrenfrom economic recessions. His “Kids Can’t Wait” campaignemphasized that missed immunizations and earlyhealth assessments have long-term impacts that can behard to recover from.By mid-2010, the need for mobile clinics in theUnited States was even more widespread, and the televisioncoverage of the 2009 earthquake devastation in Haitihad greatly increased public awareness about the need forquick, mobile healthcare solutions. Installing technologyon a new MMC, training the staff on-site, and providingremote support for the first weeks of operation was now awell-honed capability among the NYC-based CHF staff.However, CIO Weisman wonders how even bettersupport could be provided for the mobile clinics and whatnew support challenges lie ahead. Are there newer moreaffordable network communications solutions that shouldbe tried? Will the federal government’s HITECH stimulusfunds and Meaningful Use standards lead to better softwareintegration solutions? Will the increase in softwareadoptions at physician offices make it more difficult forhim to retain his staff? What combination of conditionscould emerge that render the mobile medical clinic modelobsolete?

#MBA 5401 Analyze Case Study I-4

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MATH270 (Applied Calculus II) Full Course ILABS – Latest August 2016

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MATH270 (Applied Calculus II) Full Course ILABS – Latest August 2016

DeVry MATH 270 Week 1 ILAB – Latest august 2016

DeVry MATH 270 Week 2 ILAB – Latest august 2016

DeVry MATH 270 Week 3 ILAB – Latest august 2016

DeVry MATH 270 Week 4 ILAB – Latest august 2016

DeVry MATH 270 Week 5 ILAB – Latest august 2016

DeVry MATH 270 Week 6 ILAB – Latest august 2016

DeVry MATH 270 Week 7 ILAB – Latest august 2016

#MATH270 (Applied Calculus II) Full Course ILABS – Latest August 2016

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MATH 533 Course Project SALESCALL Inc

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Introduction SALESCALL Inc. has thousands of salespeople throughout the country. A sample of 100 salespeople is selected, and data is collected on the following variables.

1. SALES (the number of sales made this week) 2. CALLS (the number of sales calls made this week) 3. TIME (the average time per call this week) 4. YEARS (years of experience in the call center) 5. TYPE (the type of training, either group training, online training of no training)

The data file can be found in Doc Sharing titled Course Project Data.xlsx.

This project is due in three parts, at the end of Weeks 2, 6, and 7 respectively.

PROJECT PART A: Exploratory Data Analysis

1. Open the file Course Project Data.xlsx from the Course Project Data Set folder in Doc Sharing.

2. For each of the five variables, process, organize, present, and summarize the data. Analyze each variable by itself using graphical and numerical techniques of summarization. Use Minitab as much as possible, explaining what the printout tells you. You may wish to use some of the following graphs: stem-leaf diagram, frequency or relative frequency table, histogram, boxplot, dotplot, pie chart, or bar graph. Caution: not all of these are appropriate for each of these variables, nor are they all necessary. More is not necessarily better. In addition, be sure to find the appropriate measures of central tendency and measures of dispersion for the above data. Where appropriate, use the five number summary (the min, Q1, median, Q3, max). Once again, use Minitab as appropriate, and explain what the results mean.

3. Analyze the connections or relationships between the variables. There are 10 pairings here (SALES and CALLS, SALES and TIME, SALES and YEARS, SALES and TYPE, CALLS and TIME, CALLS and YEARS, CALLS and TYPE, TIME and YEARS, TIME and TYPE, YEARS and TYPE). Use graphical and numerical summary measures. Explain what you see. Be sure to consider all 10 pairings. Some variables show clear relationships, while others do not.

4. Prepare your report in Microsoft Word (or some other word processing package), integrating your graphs and tables with text explanations and interpretations. Be sure that you have graphical and numerical back up for your explanations and interpretations. Be selective in what you include in the report. I’m not looking for a 20-page report on every variable and every possible relationship (that’s 15 things to do). Rather, what I want you do is to highlight what you see for three individual variables (no more than one graph for each, one or two measures of central tendency and variability, and two or three sentences of interpretation). For the 10 pairings, identify and report only on three of the pairings, again using graphical and numerical summary (as appropriate), with interpretations. Please note that at least one of your pairings must include TYPE, and at least one of your pairings must not include TYPE.

All DeVry University policies are in effect, including the plagiarism policy.

Project Part A report is due by the end of Week 2.

Project Part A is worth 100 total points. See the grading rubric below.

Submission: The report from Part 4, including all relevant graphs and numerical analysis, along with interpretations. Format for Report: Brief introduction Discuss your first individual variable, using graphical, numerical, summary, and interpretation. Discuss your second individual variable, using graphical, numerical, summary, and interpretation. Discuss your third individual variable, using graphical, numerical, summary, and interpretation. Discuss your first pairing of variables, using graphical, numerical, summary, and interpretation. Discuss your second pairing of variables, using graphical, numerical summary and interpretation Discuss your third pairing of variables, using graphical, numerical, summary, and interpretation. Conclusion

#MATH 533 Course Project SALESCALL Inc

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MATH 533 ( Applied Managerial Statistics ) Final Exam Answers

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MATH 533 Final Exam Set 1

(TCO D) PuttingPeople2Work has a growing business placing out-of-work MBAs. They claim they can place a client in a job in their field in less than 36 weeks. You are given the following data from a sample. Sample size: 100 Population standard deviation: 5 Sample mean: 34.2 Formulate a hypothesis test to evaluate the claim. (Points : 10) Ho: µ = 36; Ha: µ ≠ 36 Ho: µ ≥ 36; Ha: µ < 36 Ho: µ ≤ 34.2; Ha: µ > 34.2 Ho: µ > 36; Ha: µ ≤ 36

Ans. b. H0 must always have equal sign, < 36 weeks 2. (TCO B) The Republican party is interested in studying the number of republicans that might vote in a particular congressional district. Assume that the number of voters is binomially distributed by party affiliation (either republican or not republican). If 10 people show up at the polls, determine the following: Binomial distribution

0.5

P(X)

cumulative probability

0.00098

0.00977

0.01074

0.04395

0.05469

0.11719

0.17188

0.20508

0.37695

0.24609

0.62305

0.20508

0.82813

0.11719

0.94531

0.04395

0.98926

0.00977

0.99902

0.00098

1.00000

What is the probability that no more than four will be republicans? (Points : 10) 38% 12% 21% 62%

Ans. a look at x=4, cumulative probability 3. (TCO A) Company ABC had sales per month as listed below. Using the Minitab output given, determine: (A) Range (5 points); (B) Median (5 points); and (C) The range of the data that would contain 68% of the results. (5 points). Raw data: sales/month (Millions of $) 23 45 34 34 56 67 54 34 45 56 23 19 Descriptive Statistics: Sales

Variable

Total Count

Mean

StDev

Variance

Minimum

Maximum

Range

Sales

40.83

15.39

236.88

19.00

67.00

48.00

Stem-and-Leaf Display: Sales Stem-and-leaf of Sales N = 12 Leaf Unit = 1.0

444

Reference: (TCO A) Company ABC had sales per month as listed below. Using the MegaStat output given, determine: (A) Range (5 points) (B) Median (5 points) (C) The range of the data that would contain 68% of the results. (5 points)

Raw data: sales/month (Millions of $) 19 34 23 34 56 45 35 36 46 47 19 23

count 12 mean 34.75 sample variance 146.20 sample standard deviation 12.09 minimum 19 maximum 56 range 37

Stem and Leaf plot for # 1 stem unit = 10 leaf unit = 1

count

12.00000

mean

34.75000

sample variance

146.20455

sample standard deviation

12.09151

minimum

19.00000

maximum

56.00000

range

37.00000

1st quartile

23.00000

median

34.50000

3rd quartile

45.25000

interquartile range

22.25000

mode

19.00000

4. (TCO C, D) Tesla Motors needs to buy axles for their new car. They are considering using Chris Cross Manufacturing as a vendor. Tesla’s requirement is that 95% of the axles are 100 cm ± 2 cm. The following data is from a test run from Chris Cross Manufacturing. Should Tesla select them as a vendor? Explain your answer. Descriptive statistics

count

mean

99.850

sample variance

4.627

sample standard deviation

2.151

minimum

96.9

maximum

104

range

7.1

population variance

4.338

population standard deviation

2.083

standard error of the mean

0.538

tolerance interval 95.45% lower

95.548

tolerance interval 95.45% upper

104.152

margin of error

4.302

1st quartile

98.850

median

99.200

3rd quartile

100.550

interquartile range

1.700

mode

103.000

(Points : 25)

Reference: Chegg

Tesla Motors needs to buy axles for their new car. They are considering using Chris Cross Manufacturing as a vendor. Tesla’s requirement is that 95% of the axles are 100 cm ± 5 cm. The following data is MegaStat output from a test run from Chris Cross Manufacturing.

Descriptive statistics count: 16 mean: 99.938 sample variance: 2.313 sample standard deviation: 1.521 minimum: 97 maximum: 102.9 range: 5.9 population variance: 2.169 population standard deviation: 1.473 standard error of the mean: 0.380 tollerance interval 95.45% lower: 96.896 tolerance interval 95.45% upper: 102.979 half-width: 3.042

1st quartile: 98.900 median: 99.850 3rd quartile: 100.475 interquartile range: 1.575 mode: 98.900

Question: Should Tesla select them as a vendor? Explain your answer.

Answers (1)

· Given that,

1st quartile: 98.900 median: 99.850 3rd quartile: 100.475 interquartile range: 1.575 mode: 98.900 Now, we have to construct 95% confidence interval for the data from

the Chris Cross Manufacturing

(TCO D) A PC manufacturer claims that no more than 2% of their machines are defective. In a random sample of 100 machines, it is found that 4.5% are defective. The manufacturer claims this is a fluke of the sample. At a .02 level of significance, test the manufacturer’s claim, and explain your answer.

Test and CI for One Proportion

Test of p = 0.02 vs p > 0.02

Sample

Sample p

98% Lower Bound

Z-Value

P-Value

100

0.040000

0.000000

1.43

0.077

Reference:

Set up the hypotheses:

H0: p <= 0.02

Ha: p > 0.02

This is a one tailed test, since we will only reject for high proportions.

Since we are using a 0.02 level of significance (it’s just chance that the hypotheses happen to have the same value as this), we’ll reject the null hypothesis if our P Value is less than 0.02.

The computed P value from Megastat was 0.0371.

This is higher than the significance level.

Therefore, we do not reject H0:.

We can say that the proportion is still less than or equal to 2%, and this was a fluke.

Final Page 2

1. (TCO B) The following table gives the number of visits to recreational facilities by kind and geographical region. (Points : 30)

Ans.

East

South

Midwest

West

Totals

Local Park

328

464

National Park

233

514

204

251

1202

State Park

100

526

102

793

Totals

388

1368

298

405

2459

(A) Referring to the above table, if a visitor is chosen at random, what is the probability that he or she is either from the South or from the West? (15 points) (B) Referring to the above table, given that the visitor is from the Midwest, what is the probability that he or she visited a local park? (15 points)

a. Total people = 2459

South + West = 1368 + 405 = 1773

probability — divide these:

1773/2459 = approx 0.721

Total Midwest = 298

Midwest local park = 29

Divide:

(TCO B, F) The length of time Americans exercise each week is normally distributed with a mean of 15.8 minutes and a standard deviation of 2.2 minutes

P(X≤x)

P(X≥x)

Mean

Std dev

.0146

.9854

15.8

2.2

.3581

.6419

15.8

2.2

.9910

.0090

15.8

2.2

.9999

.0001

15.8

2.2

p(lower)

p(upper)

(A) Analyze the output above to determine what percentage of Americans will exercise between 11 and 21 minutes per week. (15 points) (B) What percentage of Americans will exercise less than 15 minutes? If 1000 Americans were evaluated, how many would you expect to have exercised less than 15 minutes? (15 points) (Points : 30)

MATH 533 Final Exam Set 2

(TCO A) Seventeen salespeople reported the following number of sales calls completed last month.

72 93 82 81 82 97 102 107 119 86 88 91 83 93 73 100 102

Compute the mean, median, mode, and standard deviation, Q1, Q3, Min, and Max for the above sample data on number of sales calls per month. b. In the context of this situation, interpret the Median, Q1, and Q3. (Points : 33)

(TCO B) Cedar Home Furnishings has collected data on their customers in terms of whether they reside in an urban location or a suburban location, as well as rating the customers as either “good,” “borderline,” or “poor.” The data is below.

Urban

Suburban

Total

Good

168

228

Borderline

108

Poor

Total

120

280

400

If you choose a customer at random, then find the probability that the customer

a. is considered “borderline.”

(TCO B) Historically, 70% of your customers at Rodale Emporium pay for their purchases using credit cards. In a sample of 20 customers, find the probability that

a. exactly 14 customers will pay for their purchases using credit cards.

(TCO C) An operations analyst from an airline company has been asked to develop a fairly accurate estimate of the mean refueling and baggage handling time at a foreign airport. A random sample of 36 refueling and baggage handling times yields the following results.

Sample Size = 36 Sample Mean = 24.2 minutes Sample Standard Deviation = 4.2 minutes

a. Compute the 90% confidence interval for the population mean refueling and baggage time.

(TCO C) The manufacturer of a certain brand of toothpaste claims that a high percentage of dentists recommend the use of their toothpaste. A random sample of 400 dentists results in 310 recommending their toothpaste.

a. Compute the 99% confidence interval for the population proportion of dentists who recommend the use of this toothpaste.

(TCO D) A Ford Motor Company quality improvement team believes that its recently implemented defect reduction program has reduced the proportion of paint defects. Prior to the implementation of the program, the proportion of paint defects was .03 and had been stationary for the past 6 months. Ford selects a random sample of 2,000 cars built after the implementation of the defect reduction program. There were 45 cars with paint defects in that sample. Does the sample data provide evidence to conclude that the proportion of paint defects is now less than .03 (with a = .01)? Use the hypothesis testing procedure outlined below.

a. Formulate the null and alternative hypotheses.

(TCO D) A new car dealer calculates that the dealership must average more than 4.5% profit on sales of new cars. A random sample of 81 cars gives the following result.

Sample Size = 81 Sample Mean = 4.97% Sample Standard Deviation = 1.8%

Does the sample data provide evidence to conclude that the dealership averages more than 4.5% profit on sales of new cars (using a = .10)? Use the hypothesis testing procedure outlined below.

a. Formulate the null and alternative hypotheses.

(TCO E) Bill McFarland is a real estate broker who specializes in selling farmland in a large western state. Because Bill advises many of his clients about pricing their land, he is interested in developing a pricing formula of some type. He feels he could increase his business significantly if he could accurately determine the value of a farmer’s land. A geologist tells Bill that the soil and rock characteristics in most of the area that Bill sells do not vary much. Thus the price of land should depend greatly on acreage. Bill selects a sample of 30 plots recently sold. The data is found below (in Minitab), where X=Acreage and Y=Price ($1,000s).

PRICE

ACREAGE

PREDICT

20.0

130

40.5

250

10.2

300

100.0

30.0

182

56.5

115

41.0

10.0

18.5

30.0

25.6

122

42.0

14.0

200

70.0

13.0

21.6

6.5

145

45.0

19.2

235

80.0

250

90.0

278

95.0

118

41.0

14.0

22.0

220

81.5

235

78.0

16.0

10.0

290

100.0

Correlations: PRICE, ACREAGE Pearson correlation of PRICE and ACREAGE = 0.997 P-Value = 0.000

Regression Analysis: PRICE versus ACREAGE The regression equation is PRICE = 2.26 + 2.89 ACREAGE

Predictor Coef SE Coef T P Constant 2.257 2.231 1.01 0.320 ACREAGE 2.89202 0.04353 66.44 0.000

S = 7.21461 R-Sq = 99.4% R-Sq(adj) = 99.3%

Analysis of Variance

Source DF SS MS F P Regression 1 229757 229757 4414.11 0.000 Residual Error 28 1457 52 Total 29 231215

Predicted Values for New Observations

New Obs Fit SE Fit 95% CI 95% PI 1 146.86 1.37 (144.05, 149.66) (131.82, 161.90) 2 725.26 9.18 (706.46, 744.06) (701.35, 749.17)XX

XX denotes a point that is an extreme outlier in the predictors.

Values of Predictors for New Observations

New Obs ACREAGE 1 50 2 250

Analyze the above output to determine the regression equation.

(TCO E) An insurance firm wishes to study the relationship between driving experience (X1, in years), number of driving violations in the past three years (X2), and current monthly auto insurance premium (Y). A sample of 12 insured drivers is selected at random. The data is given below (in MINITAB):

Predict X1

Predict X2

Regression Analysis: Y versus X1, X2 The regression equation is Y = 55.1 – 1.37 X1 + 8.05 X2

Predictor Coef SE Coef T P Constant 55.138 7.309 7.54 0.000 X1 -1.3736 0.4885 -2.81 0.020 X2 8.053 1.307 6.16 0.000

S = 6.07296 R-Sq = 93.1% R-Sq(adj) = 91.6%

Analysis of Variance

Source DF SS MS F P Regression 2 4490.3 2245.2 60.88 0.000 Residual Error 9 331.9 36.9 Total 11 4822.3

Predicted Values for New Observations

New Obs Fit SE Fit 95% CI 95% PI 1 52.20 2.91 (45.62, 58.79) (36.97, 67.44)

Values of Predictors for New Observations

New Obs X1 X2 1 8.00 1.00

Correlations: Y, X1, X2 Y X1 X1 -0.800 0.002

X2 0.933 -0.660 0.000 0.020

Cell Contents: Pearson correlation P-Value

a. Analyze the above output to determine the multiple regression equation.

MATH 533 Final Exam Set 3

MATH 533 Final Exam Set 4

#MATH 533 ( Applied Managerial Statistics ) Final Exam Answers

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MATH 533 ( Applied Managerial Statistics ) Entire Course

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(MATH 533 Applied Managerial Statistics – DeVry)

(MATH 533 Week 1) MATH 533 Week 1 Homework Problems (MyStatLab) MATH 533 Week 1 Graded Discussion Topics MATH 533 Week 1 Quiz

(MATH 533 Week 2) MATH 533 Week 2 Homework Problems (MyStatLab) MATH 533 Week 2 Graded Discussion Topics MATH 533 Week 2 Course Project – Part A (SALESCALL Inc.)

(MATH 533 Week 3) MATH 533 Week 3 Homework Problems (MyStatLab) MATH 533 Week 3 Graded Discussion Topics

(MATH 533 Week 4) MATH 533 Week 4 Homework Problems (MyStatLab) MATH 533 Week 4 Graded Discussion Topics

(MATH 533 Week 5) MATH 533 Week 5 Homework Problems (MyStatLab) MATH 533 Week 5 Quiz MATH 533 Week 5 Graded Discussion Topics

(MATH 533 Week 6) MATH 533 Week 6 Homework Problems (MyStatLab) MATH 533 Week 6 Graded Discussion Topics MATH 533 Week 6 Course Project – Part B (SALESCALL Inc.)

(MATH 533 Week 7) MATH 533 Week 7 Course Project – Part C (SALESCALL Inc.) MATH 533 Week 7 Graded Discussion Topics

(MATH 533 Week 8 Final Exam Answers)

MATH 533 ( Applied Managerial Statistics ) Final Exam Answers

MATH 533 Final Exam Set 1

0.5

P(X)

cumulative probability

0.00098

0.00977

0.01074

0.04395

0.05469

0.11719

0.17188

0.20508

0.37695

0.24609

0.62305

0.20508

0.82813

0.11719

0.94531

0.04395

0.98926

0.00977

0.99902

0.00098

1.00000

What is the probability that no more than four will be republicans? (Points : 10) 38% 12% 21% 62%

Variable

Total Count

Mean

StDev

Variance

Minimum

Maximum

Range

Sales

40.83

15.39

236.88

19.00

67.00

48.00

Stem-and-Leaf Display: Sales Stem-and-leaf of Sales N = 12 Leaf Unit = 1.0

444

Raw data: sales/month (Millions of $) 19 34 23 34 56 45 35 36 46 47 19 23

count 12 mean 34.75 sample variance 146.20 sample standard deviation 12.09 minimum 19 maximum 56 range 37

Stem and Leaf plot for # 1 stem unit = 10 leaf unit = 1

count

12.00000

mean

34.75000

sample variance

146.20455

sample standard deviation

12.09151

minimum

19.00000

maximum

56.00000

range

37.00000

1st quartile

23.00000

median

34.50000

3rd quartile

45.25000

interquartile range

22.25000

mode

19.00000

count

mean

99.850

sample variance

4.627

sample standard deviation

2.151

minimum

96.9

maximum

104

range

7.1

population variance

4.338

population standard deviation

2.083

standard error of the mean

0.538

tolerance interval 95.45% lower

95.548

tolerance interval 95.45% upper

104.152

margin of error

4.302

1st quartile

98.850

median

99.200

3rd quartile

100.550

interquartile range

1.700

mode

103.000

(Points : 25) Reference: Chegg Tesla Motors needs to buy axles for their new car. They are considering using Chris Cross Manufacturing as a vendor. Tesla’s requirement is that 95% of the axles are 100 cm ± 5 cm. The following data is MegaStat output from a test run from Chris Cross Manufacturing.

1st quartile: 98.900 median: 99.850 3rd quartile: 100.475 interquartile range: 1.575 mode: 98.900

Question: Should Tesla select them as a vendor? Explain your answer.

Answers (1)

· Given that,

1st quartile: 98.900 median: 99.850 3rd quartile: 100.475 interquartile range: 1.575 mode: 98.900 Now, we have to construct 95% confidence interval for the data from

the Chris Cross Manufacturing

Test and CI for One Proportion

Test of p = 0.02 vs p > 0.02

Sample

Sample p

98% Lower Bound

Z-Value

P-Value

100

0.040000

0.000000

1.43

0.077

Reference:

Set up the hypotheses:

H0: p <= 0.02

Ha: p > 0.02

This is a one tailed test, since we will only reject for high proportions.

Since we are using a 0.02 level of significance (it’s just chance that the hypotheses happen to have the same value as this), we’ll reject the null hypothesis if our P Value is less than 0.02.

The computed P value from Megastat was 0.0371.

This is higher than the significance level.

Therefore, we do not reject H0:.

We can say that the proportion is still less than or equal to 2%, and this was a fluke.

Final Page 2

1. (TCO B) The following table gives the number of visits to recreational facilities by kind and geographical region. (Points : 30)

Ans.

East

South

Midwest

West

Totals

Local Park

328

464

National Park

233

514

204

251

1202

State Park

100

526

102

793

Totals

388

1368

298

405

2459

a. Total people = 2459

South + West = 1368 + 405 = 1773

probability — divide these:

1773/2459 = approx 0.721

Total Midwest = 298

Midwest local park = 29

Divide:

(TCO B, F) The length of time Americans exercise each week is normally distributed with a mean of 15.8 minutes and a standard deviation of 2.2 minutes

P(X≤x)

P(X≥x)

Mean

Std dev

.0146

.9854

15.8

2.2

.3581

.6419

15.8

2.2

.9910

.0090

15.8

2.2

.9999

.0001

15.8

2.2

p(lower)

p(upper)

MATH 533 Final Exam Set 2

(TCO A) Seventeen salespeople reported the following number of sales calls completed last month.

72 93 82 81 82 97 102 107 119 86 88 91 83 93 73 100 102

Urban

Suburban

Total

Good

168

228

Borderline

108

Poor

Total

120

280

400

If you choose a customer at random, then find the probability that the customer

is considered “borderline.”

(TCO B) Historically, 70% of your customers at Rodale Emporium pay for their purchases using credit cards. In a sample of 20 customers, find the probability that

exactly 14 customers will pay for their purchases using credit cards.

Sample Size = 36 Sample Mean = 24.2 minutes Sample Standard Deviation = 4.2 minutes

Compute the 90% confidence interval for the population mean refueling and baggage time.

Compute the 99% confidence interval for the population proportion of dentists who recommend the use of this toothpaste.

Formulate the null and alternative hypotheses.

(TCO D) A new car dealer calculates that the dealership must average more than 4.5% profit on sales of new cars. A random sample of 81 cars gives the following result.

Sample Size = 81 Sample Mean = 4.97% Sample Standard Deviation = 1.8%

Does the sample data provide evidence to conclude that the dealership averages more than 4.5% profit on sales of new cars (using a = .10)? Use the hypothesis testing procedure outlined below.

Formulate the null and alternative hypotheses.

PRICE

ACREAGE

PREDICT

20.0

130

40.5

250

10.2

300

100.0

30.0

182

56.5

115

41.0

10.0

18.5

30.0

25.6

122

42.0

14.0

200

70.0

13.0

21.6

6.5

145

45.0

19.2

235

80.0

250

90.0

278

95.0

118

41.0

14.0

22.0

220

81.5

235

78.0

16.0

10.0

290

100.0

Correlations: PRICE, ACREAGE Pearson correlation of PRICE and ACREAGE = 0.997 P-Value = 0.000

Regression Analysis: PRICE versus ACREAGE The regression equation is PRICE = 2.26 + 2.89 ACREAGE

Predictor Coef SE Coef T P Constant 2.257 2.231 1.01 0.320 ACREAGE 2.89202 0.04353 66.44 0.000

S = 7.21461 R-Sq = 99.4% R-Sq(adj) = 99.3%

Analysis of Variance

Source DF SS MS F P Regression 1 229757 229757 4414.11 0.000 Residual Error 28 1457 52 Total 29 231215

Predicted Values for New Observations

New Obs Fit SE Fit 95% CI 95% PI 1 146.86 1.37 (144.05, 149.66) (131.82, 161.90) 2 725.26 9.18 (706.46, 744.06) (701.35, 749.17)XX

XX denotes a point that is an extreme outlier in the predictors.

Values of Predictors for New Observations

New Obs ACREAGE 1 50 2 250

Analyze the above output to determine the regression equation.

Predict X1

Predict X2

050

060

Regression Analysis: Y versus X1, X2 The regression equation is Y = 55.1 – 1.37 X1 + 8.05 X2

Predictor Coef SE Coef T P Constant 55.138 7.309 7.54 0.000 X1 -1.3736 0.4885 -2.81 0.020 X2 8.053 1.307 6.16 0.000

S = 6.07296 R-Sq = 93.1% R-Sq(adj) = 91.6%

Analysis of Variance

Source DF SS MS F P Regression 2 4490.3 2245.2 60.88 0.000 Residual Error 9 331.9 36.9 Total 11 4822.3

Predicted Values for New Observations

New Obs Fit SE Fit 95% CI 95% PI 1 52.20 2.91 (45.62, 58.79) (36.97, 67.44)

Values of Predictors for New Observations

New Obs X1 X2 1 8.00 1.00

Correlations: Y, X1, X2 Y X1 X1 -0.800 0.002

X2 0.933 -0.660 0.000 0.020

Cell Contents: Pearson correlation P-Value

Analyze the above output to determine the multiple regression equation.

MATH 533 Final Exam Set 3

MATH 533 Final Exam Set 4

#MATH 533 ( Applied Managerial Statistics ) Entire Course

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#MATH 302 Midterm Exam Answers

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MATH 125 Final Exam Answers

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FINAL EXAM MATH 125

Question 1 of 25

1.0/ 1.0 Points

The length of a garden is double its width. There is a fence around the perimeter that measures 228 ft. What are the length and width of the garden?

A.length = 40 ft, width = 80 ft

B.length = 80 ft, width = 40 ft

C.length = 76 ft, width = 38 ft

D.length = 38 ft, width = 76 ft

Question 2 of 25

1.0/ 1.0 Points

Let U = [5, 10, 15, 20, 25, 30, 35, 40] A = [5, 10, 15, 20] B = [25, 30, 35, 40] C = [10, 20, 30, 40]. Find A U B.

A.A U B = [10, 15]

B.A U B = Ø

C.A U B = [5,10, 15, 20, 25]

D.A U B = [5, 10, 15, 20, 25, 30, 35, 40]

Question 3 of 25

1.0/ 1.0 Points

The table shows the students from Genius High School with the four highest GPAs from 2005 to 2007. Write the region(s) of the Venn diagram that would include Kellyn. (Note set X represents 2005 top-ranked students, set Y represents 2006 top-ranked students, and set Z represents 2007 top-ranked students).

A.Region I

B.Region III

C.Region V

D.Region IV

Question 4 of 25

1.0/ 1.0 Points

A person sold their house for $150,000 and made a profit of 37 percent. How much did they pay for their home?

A.$55,500.00

B.$171,250.96

C.$135,000.79

D.$109,489.05

Question 5 of 25

1.0/ 1.0 Points

Gail is trying to stay between 475 calories and 675 calories for lunch. She selects a sandwich for 325 calories and a salad for 107 calories. How many calories can she have for dessert?

A.Between 43 and 275 calories

B.Between 43 and 243 calories

C.Between 100 and 275 calories

D.Between 100 and 243 calories

Question 6 of 25

1.0/ 1.0 Points

Adult tickets for a play cost $11 and child tickets cost $5. If there were 30 people at a performance and the theatre collected $198 from ticket sales, how many children attended the play?

A.22 children

B.21 children

C.23 children

D.8 children

Question 7 of 25

1.0/ 1.0 Points

Graph the linear function: f(x) = -2x + 4

Question 8 of 25

1.0/ 1.0 Points

The total real estate commission for a real estate company was $60 million in 2008, an increase of $25 million over the year 2004. What was the percent increase? Round answer to the nearest tenth of a percent.

A.28.6 percent

B.71.4 percent

C.41.7 percent

D.58.3 percent

Question 9 of 25

1.0/ 1.0 Points

Dr. Sand borrowed some money to buy new furniture for her office. She paid $634.41 simple interest on a 3.5-year loan at 4.2 percent. Find the principal.

A.$93.26

B.$4,315.71

C.$2,220.44

D.$5,000.00

Question 10 of 25

1.0/ 1.0 Points

In order to help pay for college, the grandparents of a child invest $2,500 in a bond that pays 8 percent interest compounded quarterly. How much money will there be in 4 years?

A.$3,542.10

B.$3,521.72

C.$3,431.96

D.$3,401.60

Question 11 of 25

1.0/ 1.0 Points

Katie had an unpaid balance of $3,155.15 on her credit card statement at the beginning of October. She made a payment of $215.00 during the month, and made purchases of $412.01. If the interest rate on Katie’s credit card was 6.5 percent per month on the unpaid balance, find her finance charge and the new balance on November 1.

A.Finance charge = $200.00; new balance = $3,452.17

B.Finance charge = $205.08; new balance = $3,557.25

C.Finance charge = $215.19; new balance = $3,467.36

D.Finance charge = $195.14; new balance = $3,447.31

Question 12 of 25

1.0/ 1.0 Points

Use an English/Metric conversion for area given in the table to convert the following measurement to the specified measurement. Round to the nearest hundredth, if necessary.

1 in2 ≈ 6.45 cm2

1 ft2 ≈ 0.093 m2

1 yd2 ≈ 0.836 m2

1 mi2 ≈ 2.59 km2

1 acre ≈ 4,047 m2

10,427 in2 = _____ dm2

A.161,409.60 dm2

B.10.42 dm2

C.6,725,400 dm2

D.672.54 dm2

Question 13 of 25

1.0/ 1.0 Points

Convert the following Celsius temperature to an equivalent Fahrenheit temperature. –5 degrees C

A.0 degrees F

B.7 degrees F

C.–1 degrees F

D.23 degrees F

Question 14 of 25

1.0/ 1.0 Points

Find the perimeter.

A.35 inches

B.25 inches

C.48 inches

D.45 inches

Question 15 of 25

1.0/ 1.0 Points

The triangles in the figure below are similar. Use the proportional property of similar triangles to find the measure of x.

A.34.2 km

B.29.2 km

C.21 km

D.19.2 km

Question 16 of 25

1.0/ 1.0 Points

Find the area.

A.900 sq mi

B.240 sq mi

C.150 sq mi

D.450 sq mi

Question 17 of 25

1.0/ 1.0 Points

Suppose the cone below has a radius of 7inches and a height of 10 inches. Find the volume of the cone.

Round to two decimal places.

A.339.29 cu in

B.1,526.81 cu in

C.512.87 cu in

D.226.19 cu in

Question 18 of 25

1.0/ 1.0 Points

In a classroom, the students are 12 boys and 6 girls. If one student is selected at random, find the probability that the student is a girl.

A.2/3

B.1/2

C.2/9

D.1/3

Question 19 of 25

1.0/ 1.0 Points

To enter a contest, a person must select 7 numbers from 49 numbers. In order to win a prize one of the numbers must match. Find the probability of winning if a person buys one ticket. (Note: The numbers can be selected in any order and any one of the seven winning numbers on the ticket is a win.)

A.0.001

B.0.0167

C.0.14

D.0.0007

Question 20 of 25

1.0/ 1.0 Points

A single card is drawn from a deck. Find the probability of selecting a 4 or a club.

A.7/52

B.9/26

C.4/13

D.17/52

Question 21 of 25

1.0/ 1.0 Points

Twenty marbles are used to spell a word—9 blue ones, 5 red ones, 3 yellow ones and 3 green ones. If two marbles are drawn from the set of twenty marbles at random in succession and without replacement, what is the probability (as a reduced fraction) of choosing a marble other than green each time?

A.1/11

B.3/17

C.1/3

D.68/95

Question 22 of 25

1.0/ 1.0 Points

Find the mean, median, mode, and midrange for the data provided. The data shows hours spent at work for a group of men.

A.mean: 65, median: 67.575, mode: 65, midrange: 30.6

B.mean: 65, median: 67.575, mode: 67, midrange: 30.6

C.mean: 67.575, median: 65, mode: no mode, midrange: 67

D.mean: 67.575, median: 67, mode: no mode, midrange: 67

Question 23 of 25

1.0/ 1.0 Points

Assume a data set is normally distributed with mean 121 and standard deviation 15. If the data set contains 650 data values, approximately how many of the data values will fall within the range 91 to 151?

A.574

B.620

C.318

D.424

Question 24 of 25

1.0/ 1.0 Points

The average amount customers at a certain grocery store spend yearly is $665.98. Assume the variable is normally distributed. If the standard deviation is $93.27, find the probability that a randomly selected customer spends between $638.00 and $829.20.

A.0.330 = 33.0 percent

B.0.701 = 70.1 percent

C.0.578 = 57.8 percent

D.0.342 = 34.2 percent

Question 25 of 25

0.0/ 1.0 Points

In a class of 300 students, John’s rank was 40. Find his percentile rank.

A.26

B.90

C.13

D.87

#MATH 125 Final Exam Answers

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MATH 107 Final Exam Answers

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MATH 107 Final Exam Answers

There are 30 problems.

Problems #1–12 are Multiple Choice.

Problems #13–21 are Short Answer. (Work not required to be shown)

Problems #22–30 are Short Answer with work required to be shown.

MULTIPLE CHOICE

1. Determine the domain and range of the piecewise function. 1. ______

4 2

-4 -2 2 4

-2 -4

1. Domain [–3, 3]; Range [–2, 4]

2. Domain [–3, 3]; Range [0, 3]

3. Domain [–2, 4]; Range [–3, 3]

4. Domain [–1, 4]; Range [–2, 2]

5. Solve: 2x+ 20= x+ 6 2. ______

6. −8,−2

7. −2

8. −14

9. No solution

Page 1 of 11

College Algebra MATH 107 Spring, 2016, V1.7

3. Determine the interval(s) on which the function is decreasing. 3. ______

4. (–3.6, 0) and (6.7,∞)

5. (–2, 4)

6. (–∞, –2) and (4,∞)

7. (–1, 3)

4. Determine whether the graph of y=

x−7

is symmetric with respect to the origin,

the x-axis, or the y-axis.

4. ______

1. symmetric with respect to the x-axis only

2. symmetric with respect to the y-axis only

3. symmetric with respect to the origin only

4. not symmetric with respect to the x-axis, not symmetric with respect to the y-axis, and not symmetric with respect to the origin

5. Solve, and express the answer in interval notation: | 5 – 6x|≥13. 5. ______

6. [4/3,∞)

7. (–∞,−4/3]∪ [3,∞)

8. (–∞, 3]∪ [−4/3,∞)

9. [–4/3, 3]

Page 2 of 11

College Algebra MATH 107 Spring, 2016, V1.7

6. Which of the following represents the graph of 9x− 2y = 18 ? 6. ______

7. B.

8. D.

Page 3 of 11

College Algebra MATH 107 Spring, 2016, V1.7

7. Write a slope-intercept equation for a line parallel to the line x + 3y = 8 which passes through the point (– 4, 5). 7. ______

8. y=−1 x+11

3 3

1. y=−1 x+5

1. y=1 x+5

1. y=−3x−7

2. Which of the following best describes the graph? 8. ______

3. It is the graph of an absolute value relation.

4. It is the graph of a function but not one-to-one

5. It is the graph of a function and it is one-to-one.

6. It is not the graph of a function.

Page 4 of 11

College Algebra MATH 107

Spring, 2016, V1.7

9. Express as a single logarithm: 3 log (x + 2) + log 1 – log y

9. ______

6 log( x)+1

log y

+ 8

log

( x+2)3

log(3 x+ 7− y)

10. Which of the functions corresponds to the graph? 10. ______

11. f( x)= ex +3

12. f( x)= e−x +3

13. f( x)= e−x +2

14. f( x)=− ex +3

Math 107 College Algebra Name______________________________

Final Examination: Fall, 2015 Instructor __________________________

Answer Sheet

Instructions:

This is an open-book exam. You may refer to your text and other course materials as you work on the exam, and you may use a calculator.

Record your answers and work in this document.

There are 30 problems.

Problems #1-12 are multiple choice. Record your choice for each problem.

Problems #13-21 are short answer. Record your answer for each problem.

Problems #22-30 are short answer with work required. When requested, show all work and write all answers in the spaces allotted on the following pages. You may type your work using plain-text formatting or an equation editor, or you may hand-write your work and scan it. In either case, show work neatly and correctly, following standard mathematical conventions. Each step should follow clearly and completely from the previous step. If necessary, you may attach extra pages.

You must complete the exam individually. Neither collaboration nor consultation with others is allowed. Your exam will receive a zero grade unless you complete the following honor statement.

Please sign (or type) your name below the following honor statement:

I have completed this final examination myself, working independently and not consulting anyone except the instructor. I have neither given nor received help on this final examination.

Name _____________________ Date___________________

MULTIPLE CHOICE. Record your answer choices.

1. 7.

2. 8.

3. 9.

4. 10.

5. 11.

6. 12.

SHORT ANSWER. Record your answers below.

13.

14.

1. (a)

(b)

(c)

1. (a)

(b)

(c)

(d)

1. (a)

(b)

(c)

(d)

SHORT ANSWER with Work Shown. Record your answers and work.

Problem Number

Solution

Answers:

(a)

(b)

Work/for part (a) and explanation for part (b):

Answers:

(a)

(b)

(c)

Work for part (a):

Answer:

Work:

Answer:

Work:

Answers:

(a)

(b)

Work for part (a) and for part (b):

Answer:

Work:

Answer:

Work:

Answers:

(a)

(b)

Work for (b):

Answer:

Work:

#MATH 107 Final Exam Answers

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MAT-540 WeeK 8 Assignment 1

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You are to solve Problem 30 in Chapter 4 on page 158 of your textbook. It’s about publishing three weekly magazines. You can use QM for Windows to perform a sensitivity analysis for Objective function coefficients and the RHS values of the constraints. Be sure give the shadow price/dual values for an extra hr of production time or an extra lb of paper. Be sure to follow instructions written for Assignment 1, Linear Programming Case Study. Assignment 1. Linear Programming Case Study Your instructor will assign a linear programming project for this assignment according to the following specifications. It will be a problem with at least three (3) constraints and at least two (2) decision variables. The problem will be bounded and feasible. It will also have a single optimum solution (in other words, it won’t have alternate optimal solutions). The problem will also include a component that involves sensitivity analysis and the use of the shadow price. You will be turning in two (2) deliverables, a short writeup of the project and the spreadsheet showing your work. Writeup. Your writeup should introduce your solution to the project by describing the problem. Correctly identify what type of problem this is. For example, you should note if the problem is a maximization or minimization problem, as well as identify the resources that constrain the solution. Identify each variable and explain the criteria involved in setting up the model. This should be encapsulated in one (1) or two (2) succinct paragraphs. After the introductory paragraph, write out the L.P. model for the problem. Include the objective function and all constraints, including any non-negativity constraints. Then, you should present the optimal solution, based on your work in Excel. Explain what the results mean. Finally, write a paragraph addressing the part of the problem pertaining to sensitivity analysis and shadow price. Excel. As previously noted, please set up your problem in Excel and find the solution using Solver. Clearly label the cells in your spreadsheet. You will turn in the entire spreadsheet, showing the setup of the model, and the results. Prob. 30 A publishing house publishes three weekly magazines—Daily Life, Agriculture Today, and Surf ’s Up. Publication of one issue of each of the magazines requires the following amounts of production time and paper: Production (hr.) Paper (lb.) Daily Life 0.01 0.2 Agriculture Today 0.03 0.5 Surf’s Up 0.02 0.3

Each week the publisher has available 120 hours of production time and 3,000 pounds of paper. Total circulation for all three magazines must exceed 5,000 issues per week if the company is to keep its advertisers. The selling price per issue is $2.25 for Daily Life, $4.00 for Agriculture Today, and $1.50 for Surf’s Up. Based on past sales, the publisher knows that the maximum weekly demand for Daily Life is 3,000 issues; for Agriculture Today, 2,000 issues; and for Surf’s Up, 6,000 issues. The production manager wants to know the number of issues of each magazine to produce weekly in order to maximize total sales revenue. a. Formulate a linear programming model for this problem. b. Solve the model by using the computer.

#MAT-540 WeeK 8 Assignment 1

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MAT 540 Week 11 Final Exam Newly Taken 2016

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Final Draft of MAT 540 Final

1. Which of the following could be a linear programming objective function? (Points : 5) Z = 1A + 2BC + 3D Z = 1A + 2B + 3C + 4D Z = 1A + 2B / C + 3D Z = 1A + 2B2 + 3D all of the above

2. Which of the following could not be a linear programming problem constraint? (Points : 5) 1A + 2B 1A + 2B = 3 1A + 2B LTOREQ 3 1A + 2B GTOREQ 3

3. Types of integer programming models are _____________. (Points : 5) total 0 – 1 mixed all of the above

4. The production manager for Beer etc. produces 2 kinds of beer: light (L) and dark (D). Two resources used to produce beer are malt and wheat. He can obtain at most 4800 oz of malt per week and at most 3200 oz of wheat per week respectively. Each bottle of light beer requires 12 oz of malt and 4 oz of wheat, while a bottle of dark beer uses 8 oz of malt and 8 oz of wheat. Profits for light beer are $2 per bottle, and profits for dark beer are $1 per bottle. If the production manager decides to produce of 0 bottles of light beer and 400 bottles of dark beer, it will result in slack of (Points : 5) malt only wheat only both malt and wheat neither malt nor wheat

5. The reduced cost (shadow price) for a positive decision variable is 0. (Points : 5) True False

6. Decision variables (Points : 5) measure the objective function measure how much or how many items to produce, purchase, hire, etc. always exist for each constraint measure the values of each constrain

7. A plant manager is attempting to determine the production schedule of various products to maximize profit. Assume that a machine hour constraint is binding. If the original amount of machine hours available is 200 minutes., and the range of feasibility is from 130 minutes to 340 minutes, providing two additional machine hours will result in the: (Points : 5) same product mix, different total profit different product mix, same total profit as before same product mix, same total profit different product mix, different total profit

8. Decision models are mathematical symbols representing levels of activity. (Points : 5) True False

9. The integer programming model for a transportation problem has constraints for supply at each source and demand at each destination. (Points : 5) True False

10. In a transportation problem, items are allocated from sources to destinations (Points : 5) at a maximum cost at a minimum cost at a minimum profit at a minimum revenue

11. In a media selection problem, the estimated number of customers reached by a given media would generally be specified in the _________________. Even if these media exposure estimates are correct, using media exposure as a surrogate does not lead to maximization of ______________. (Points : 5) problem constraints, sales problem constraints, profits objective function, profits problem output, marginal revenue problem statement, revenue

12. ____________ solutions are ones that satisfy all the constraints simultaneously. (Points : 5) alternate feasible infeasible optimal unbounded

13. In a linear programming problem, a valid objective function can be represented as (Points : 5) Max Z = 5xy Max Z 5x2 + 2y2 Max 3x + 3y + 1/3z Min (x1 + x2) / x3

14. The standard form for the computer solution of a linear programming problem requires all variables to the right and all numerical values to the left of the inequality or equality sign (Points : 5) True False

15. Constraints representing fractional relationships such as the production quantity of product 1 must be at least twice as much as the production quantity of products 2, 3 and 4 combined cannot be input into computer software packages because the left side of the inequality does not consist of consists of pure numbers. (Points : 5) True False

16. In a balanced transportation model where supply equals demand, (Points : 5) all constraints are equalities none of the constraints are equalities all constraints are inequalities all constraints are inequalities

17. The objective function is a linear relationship reflecting the objective of an operation. (Points : 5) True False

18. The owner of Chips etc. produces 2 kinds of chips: Lime (L) and Vinegar (V). He has a limited amount of the 3 ingredients used to produce these chips available for his next production run: 4800 ounces of salt, 9600 ounces of flour, and 2000 ounces of herbs. A bag of Lime chips requires 2 ounces of salt, 6 ounces of flour, and 1 ounce of herbs to produce; while a bag of Vinegar chips requires 3 ounces of salt, 8 ounces of flour, and 2 ounces of herbs. Profits for a bag of Lime chips are $0.40, and for a bag of Vinegar chips $0.50. Which of the following is not a feasible production combination? (Points : 5) 0L and 0V 0L and 1000V 1000L and 0V 0L and 1200V

19. The linear programming model for a transportation problem has constraints for supply at each source and demand at each destination. (Points : 5) True False

20. For a maximization problem, assume that a constraint is binding. If the original amount of a resource is 4 lbs., and the range of feasibility (sensitivity range) for this constraint is from 3 lbs. to 6 lbs., increasing the amount of this resource by 1 lb. will result in the: (Points : 5) same product mix, different total profit different product mix, same total profit as before same product mix, same total profit different product mix, different total profit

21. In a total integer model, all decision variables have integer solution values. (Points : 5) True False

22. Linear programming is a model consisting of linear relationships representing a firm’s decisions given an objective and resource constraints. (Points : 5) True False

23. When using linear programming model to solve the “diet” problem, the objective is generally to maximize profit. (Points : 5) True False

24. In a balanced transportation model where supply equals demand, all constraints are equalities. (Points : 5) True False

25. In a transportation problem, items are allocated from sources to destinations at a minimum cost. (Points : 5) True False

26. Mallory Furniture buys 2 products for resale: big shelves (B) and medium shelves (M). Each big shelf costs $500 and requires 100 cubic feet of storage space, and each medium shelf costs $300 and requires 90 cubic feet of storage space. The company has $75000 to invest in shelves this week, and the warehouse has 18000 cubic feet available for storage. Profit for each big shelf is $300 and for each medium shelf is $150. Which of the following is not a feasible purchase combination? (Points : 5) 0 big shelves and 200 medium shelves 0 big shelves and 0 medium shelves 150 big shelves and 0 medium shelves 100 big shelves and 100 medium shelves

27. In a mixed integer model, some solution values for decision variables are integer and others can be non-integer. (Points : 5) True False

28. In a 0 – 1 integer model, the solution values of the decision variables are 0 or 1. ��(Points : 5) True False

29. Determining the production quantities of different products manufactured by a company based on resource constraints is a product mix linear programming problem. (Points : 5) True False

30. The dietician for the local hospital is trying to control the calorie intake of the heart surgery patients. Tonight’s dinner menu could consist of the following food items: chicken, lasagna, pudding, salad, mashed potatoes and jello. The calories per serving for each of these items are as follows: chicken (600), lasagna (700), pudding (300), salad (200), mashed potatoes with gravy (400) and jello (200). If the maximum calorie intake has to be limited to 1200 calories. What is the dinner menu that would result in the highest calorie in take without going over the total calorie limit of 1200. (Points : 5) chicken, mashed potatoes and gravy, jello and salad lasagna, mashed potatoes and gravy, and jello chicken, mashed potatoes and gravy, and pudding lasagna, mashed potatoes and gravy, and salad chicken, mashed potatoes and gravy, and salad

31. When the right-hand sides of 2 constraints are both increased by 1 unit, the value of the objective function will be adjusted by the sum of the constraints’ prices. (Points : 5) True False

32. The transportation method assumes that (Points : 5) the number of rows is equal to the number of columns there must be at least 2 rows and at least 2 columns 1 and 2 the product of rows minus 1 and columns minus 1 should not be less than the number of completed cells

33. A constraint is a linear relationship representing a restriction on decision making. (Points : 5) True False

34. When formulating a linear programming model on a spreadsheet, the measure of performance is located in the target cell.

(Points : 5) True False

35. The linear programming model for a transportation problem has constraints for supply at each ________ and _________ at each destination. (Points : 5) destination / source source / destination demand / source source / demand

36. The 3 types of integer programming models are total, 0 – 1, and mixed. (Points : 5) True False

37. In using rounding of a linear programming model to obtain an integer solution, the solution is (Points : 5) always optimal and feasible sometimes optimal and feasible always optimal always feasible never optimal and feasible

38. If we use Excel to solve a linear programming problem instead of QM for Windows, then the data input requirements are likely to be much less tedious and time consuming.

(Points : 5) True False

39. In a _______ integer model, some solution values for decision variables are integer and others can be non-integer. (Points : 5) total 0 – 1 mixed all of the above

40. Which of the following is not an integer linear programming problem? (Points : 5) pure integer mixed integer 0-1integer continuous

#MAT 540 Week 11 Final Exam Newly Taken 2016

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MAT 510 Homework Assignment 7

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Homework Assignment 7

Due in Week 8 and worth 30 points

The experiment data in below table was to evaluate the effects of three variables on invoice errors for a company. Invoice errors had been a major contributor to lengthening the time that customers took to pay their invoices and increasing the accounts receivables for a major chemical company. It was conjectured that the errors might be due to the size of the customer (larger customers have more complex orders), the customer location (foreign orders are more complicated), and the type of product. A subset of the data is summarized in the following Table.

Table: Invoice Experiment Error

Customer Size

Customer Location

Product Type

Number of Errors

–

Customer Size: Small (-), Large (+)

Customer Location: Foreign (-), Domestic (+)

Product Type: Commodity (-), Specialty (=)

Reference: Moen, Nolan, and Provost (R. D. Moen, T. W. Nolan and L. P. Provost. Improving Quality through Planned Experimentation.New York: McGraw-Hill, 1991)

Use the date in table above and answer the following questions in the space provided below:

What is the nature of the effects of the factors studied in this experiment?

What strategy would you use to reduce invoice errors, given the results of this experiment?

#MAT 510 Homework Assignment 7

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MAT 510 – Homework Assignment 6

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Homework Assignment 6

Due in Week 7 and worth 30 points

The data in the table below is from a study conducted by an insurance company to determine the effect of changing the process by which insurance claims are approved. The goal was to improve policyholder satisfaction by speeding up the process and eliminating some non-value-added approval steps in the process. The response measured was the average time required to approve and mail all claims initiated in a week. The new procedure was tested for 12 weeks, and the results were compared to the process performance for the 12 weeks prior to instituting the change.

Table: Insurance Claim Approval Times (days)

Old Process

New Process

Week

Elapsed Time

Week

Elapsed Time

31.7

25.8

33.8

23.5

32.5

28.5

33.5

25.6

38.2

28.7

37.5

27.4

28.5

31.3

25.2

38.6

24.5

39.3

23.5

Use the date in table above and answer the following questions in the space provided below:

What was the average effect of the process change? Did the process average increase or decrease and by how much?

Analyze the data using the regression model y = b0 + b1x, where y = time to approve and mail a claim (weekly average), x = 0 for the old process, and x = 1 for the new process.

How does this model measure the effect of the process change?

How much did the process performance change on the average? (Hint: Compare the values of b1 and the average of new process performance minus the average of the performance of the old process.)

#MAT 510 – Homework Assignment 6

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MAT 510 – Homework Assignment 5

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Homework Assignment 5

Due in Week 6 and worth 30 points

The data in below table lists country code and the order to remittance (OTR) time for hardware / software installations for the last 76 installations (from first to last). OTR is the time it takes from an order being placed until the system is installed and we receive payment (remittance). Because this company does business internationally, it also notes the country of installation using a country code. This code is listed in the first column.

Table: Country Code and OTR Cycle Time for Software Systems Installation

Country Code

Cycle Time

Country Code

Cycle Time

157

150

129

Use the date in table above and answer the following questions in the space provided below:

Does the OTR time appear to be stable? Why or why not?

If you were to use a control chart to evaluate stability, which chart would you use? Why?

What can you learn about the distribution of the installation process?

Does it appear that the country has an impact on installation time? Why or why not?

#MAT 510 – Homework Assignment 5

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MAT 144 All Weeks Discussions and Assignments Entire Course

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MAT 144 All Weeks Discussions and Assignments Entire Course

GC MAT144 Week 1 Discussion 1 & 2

dq 1

Choose one country that you might visit during your mission trip for the course project. Select a duration for your trip between two and six weeks, and then choose a number of participants between 5 and 10 people. Suppose one goal of your group is to speak to every adult citizen in the country. How many citizens must each missionary need to talk to per day, per hour, and per second to speak to every adult citizen in that country? Is that goal reasonable? dq 2

A deductive argument is valid if the conclusion necessarily follows from the premises. It is sound if it is valid and the premises are true.

Pick three of the following arguments and clearly explain why each argument is or is not valid or sound.

1. 1. No human lives in outer space. Susie lives in outer space. Thus, Susie is not human.

2. 2. All birds can fly. Ostriches are birds. Therefore, ostriches can fly.

3. 3. All jobs are easy. Walking is not a job. Hence, walking is not easy.

4. 4. When it rains, it snows. It is snowing. Therefore, it is raining.

5. 5. No dog is a cat. Billy is a cat. Thus, Billy is not a dog.

6. 6. If someone is a medical doctor, they are smart. Dr. Oz is a medical doctor. So, Dr. Oz is smart.

7. 7. Whichever candidate receives the greatest share of the popular vote is elected President of the United States. Al Gore received more votes than George Bush. Therefore, Al Gore was elected President of the United States.

MAT144 Week 2 Discussion

dq 1

From the Course Materials, click the link to The World Factbook on the CIA website to find the current population and growth rate for a country of your choice. Use the population growth model below to predict the population of the country 1 year from now, 10 years from now, 100 years from now, and 1000 years from now. Are all of these predictions appropriate? Why?

Use the model P(t) = P0(1+r)twhere P0= current population r = the population growth rate t = time in years from now P(t) = population t years from now

dq 2

In DQ 1, you predicted the population 10 years from now for the country you chose. Now calculate another projection of the population for 10 years from now and add 1% to the growth rate. Did the new 10-year population projection also increase by 1%? What do your findings signify?

MAT144 Week 3 Discussion

dq 1

What is percent? Write the formula for percent increase. Write your height in inches. Suppose it increases by 15%, what would your new height be?

dq 2

Choose two of the following statements and determine whether each makes sense. Support your reasoning with calculations.

1. 1. I have $100 and my restaurant bill comes to $81, which is not enough to leave a 20% tip.

2. 2. I found the percent decrease in a jacket’s price to be 120%.

3. 3. My weight increased by 2% in January. My new weight decreased by 2% in February, so I am back at my original weight.

4. 4. My rent increased from 20% to 30% of my monthly income, so the percent increase in my monthly rent check is 10%.

5. 5. At a clearance sale, the price of a pair of boots is half off the original price. I also have a coupon for half off the clearance price. If I use this coupon, I can get the pair of boots free.

6. 6. The final price after tax of a stereo is $110.00. The tax rate was 10%. $110-$110*.10 = $99, so the price before tax was $99.

7. 7. I bought a jacket that was first marked down by 20% and then was reduced another 30%. Therefore, I saved 50% on the jacket!

8. 8. A population of mites increased fourfold in four days. This means the population doubled in two days.

MAT144 Week 4 Discussion

dq 1

Use the digits of your birthday as the amount of your initial investment (i.e., 6/25 is $625), calculate the value of this investment after 10 years at 3.5% APR for interest compounded yearly, quarterly, monthly, and daily. What do you notice?

dq 2

Choose two of the following statements and determine whether each makes sense. Support your reasoning with calculations.

1. 1. Assuming that a 3-year car loan has a lower interest rate than a 5-year loan, people should always select the 3-year loan.

2. 2. After depositing $1,500 in an account with an APR of 4%, my balance at the end of the first year was $(1,500)*(1.04).

3. 3. I have $1,000 to invest. One account will pay 5% interest the first year and 10% interest the second year. Another account will pay 10% interest the first year and 5% interest the second year. It does not matter which account I choose, because I will end up with the same amount of money either way.

4. 4. I can put away $1,000 towards retirement today or $1,000 ten years from now. Either way I have invested the same amount so I will end up with the same amount when I retire in 25 years.

5. 5. I like to keep all my money, so I pay only the minimum required payment on my credit card.

6. 6. If I can afford to pay for a car out of pocket, I should still take out a loan and make only the monthly minimum payments. That way, the money in my savings account will continue to grow.

7. 7. Bank A compounds interest once a month, and has no charge for a checking account. Bank B compounds interest every day, but there is a $2/month charge for a checking account. Both banks yield 1.2% APR. Bank A is always the best deal.

8. 8. If it takes 20 years for a $100 dollar investment to double in value at a certain bank, then it should also take 20 years for a $500 investment to double in value.

MAT144 Week 4 Mission Project: Part B Peer Review Forum

Please follow these steps:

1. 1. Begin by posting a draft of Mission Project: Part B by the Wednesday, Day 3 of Topic 4 to the Project Peer Review Forum.

2. 2. Next, review the project of the person who posted his/her response directly below yours in the Peer Review forum. If your draft is the last posted, review the first draft posted. Then, complete the “Peer Review Worksheet” (see attachment).

3. 3. You will then need to post your completed Peer Review Worksheet to TWO places: to the Mission Project B: Peer Review Forum for your peer to view, as well as to the Mission Project B: Peer Review assignment box, so the instructor can grade your work by Friday, Day 5 of Topic 4.

4. 4. Attach the file with your completed Peer Review Worksheet to the Project Peer Review Forum as a “reply” to the initial post of your peer’s first draft.

5. 5. Please note that to participate in the peer review process you must post the rough draft of Mission Project: Part B essay by 11:59 pm (AZ time) Wednesday, Day 3 of Topic 4.

If you do not submit the Rough Draft or Peer Review Worksheet to both places or if you review the wrong person, you may not receive full credit for this assignment.

MAT144 Week 5 Discussion

dq 1

Take two distinct die that you can easily distinguish from one another or use an online virtual dice roller such as https://www.random.org/dice/. Identify one as Die 1 and the other as Die 2. Using the spreadsheet provided by your instructor, record the results of 20 rolls of the dice. Input the results of each roll for Die 1 and the sum of Die 1 and Die 2 on the spreadsheet to make a scatterplot of the results. Do you think that these two variables are strongly or weakly correlated? Should the correlation be positive or negative? Does the scatter plot agree with your intuition?

dq 2

Suppose you want to determine the typical income of a full time worker in America. Describe how you would sample the population without creating a bias in your sample and justify your reasoning.

MAT144 Week 6 Discussion

dq 1

Roll two dice and add the numbers. Roll the dice 20 times and record your results. Compute the mean, median, and mode for your data set. Now, replace one of your results with 100. Calculate the mean, median, and mode for this new data set. How did these change?

dq 2

According to the National Center for Health Statistics, the mean height of an American male is 69.3 inches and the mean height of an American female is 63.8 inches. The standard deviation for both genders is 2.7 inches. Assume height is approximately normal for each gender. Calculate your z-score within your gender. Find your percentile using Table 6.3 on page 396 of your text. What percent of your gender is shorter than you are? What percent is taller than you?

MAT144 Week 7 Discussion

dq 1

A friend invites you to play a game of chance that costs you $1 every time to play. You get to pick one card. You win if you pick the ace of spades. Otherwise, you lose. The amount that you win will be $(40 + the day of your birth). Example: If you were born on the fourth of July, you would win 40+4 = $44. What is the expected value of the amount you will win from each turn? Would it be a good idea to play this game only one time? Would it be a good idea to play 1,000 times?

dq 2

Every license plate consists of numbers and letters. What is the license plate on your personal vehicle or some random vehicle in your state? Determine how many possible license plates could be manufactured using the pattern of numbers and letters on this license plate.

MAT144 Week 1 Assignment

Details:

Refer to MathXL Student Instructions and Online Student Help, located on the Tools for Success page in the Student Success Center, for information on how to access and use MathXL.

If you are not already familiar with the use of MathXL, spend some time navigating in your MathXL course and complete the MathXL orientation assignment.

MAT144 Week 2 Assignment

Details:

Imagine that you are planning to conduct a mission trip in 5 years. Refer to the attached resource MAT-144 Mission Trip: Part A for complete assignment instructions.

Include three or more scholarly resources, including the textbook and The World Factbook.

Prepare this assignment according to the guidelines found in the GCU Style Guides and Templates, located in the Student Success Center.

This assignment uses a rubric. Review the rubric prior to beginning the assignment to become familiar with the expectations for successful completion.

You are required to submit this assignment to Turnitin. Please refer to the directions in the Student Success Center.

MAT-144 Mission Project: Part A

Use the following resource to assist you in completing Part A of your Mission Trip assignment.

Imagine that you are planning to conduct a mission trip in 5 years. You should select a specific mission for this project to provide some kind of humanitarian aid to the target population. Many people choose to include evangelism as a part of their mission, though the main goal must be humanitarian. The mission goal may include providing education, medical assistance, clean water, food, or aid.

To keep your mission reasonable, in scale and goal, design your mission to include yourself and 5 – 10 other participants and to be 2 – 4 weeks in duration. Because the mission group is small and the duration is not long, consider goals that can reasonably be accomplished within the allotted time. Choose a small target population for your mission. For example, if you want to bring medicine to two small villages in Peru,the villagers are your target population. It is not reasonable to try to bring medicine to the entire population of Peru with a small group of missionaries on a month long trip.

Choose three countries from the Country Data Spreadsheet providedin the Course Materials thatyou would consider going to for your mission trip. Research each country using The World Factbook found on the Central Intelligence Agency website at.cia.gov/library/publications/the-world-factbook/”>https://www.cia.gov/library/publications/the-world-factbook/, other resources such as the U.S. Department of State website at.state.gov/content/travel/english.html”>http://travel.state.gov/content/travel/english.html, and the GCU Library. Consider economic reasons for choosing these countries, and safety concerns that may be relevant to these countries and your mission goals. Remember that you would not go aloneon this trip and you are responsible for the safety of the other participants, in addition to your own.

Write a 400–600 word narrative describing your mission and why the three chosen countries are appropriate for your mission.Specifically, address the following in your assignment:

1) What is the purpose of your mission trip? In general, mission trips fall into three categories – providing aid in the form of supplies, providing education, and providing services such as medical clinics and building houses.

2) What is the target population? How does it compare with the entire population and what will it look like in 5 years? This will require use of the population information available from The World Factbook in conjunction with the information in Chapter 8 and Chapter9 of the text.

You are required to discuss your target population andits projected size in 5 years. This material is covered on pp. 480 – 483. Assume that the annual growth rate of the target population is the same as that of the country’s total population growth rate and that it will remain consistent at the most recent rate available. Show your work for all calculations using the Equation Editor inMicrosoft Word.

Example: Suppose you have $39,815.00invested at 8% APR over 5 years and the interest is compounded once per year. The formula for the final value of your investment from p. 216of your textbook gives

This is how your math should be formatted. See Part B instructions for other examples.

While this is a fun project, the goal is to assess the mathematics you are learning, so you must include your calculations, make sure they are correct and clearly written.

3) What are the economic reasons for choosing these countries? Use economic information you find in The World Factbook and other resources.

4) Why are the countries you chose are good candidates for a mission trip?

5) What are possible safety concerns that might arise in conjunction with your trip? Conduct additional research as necessary to address this concern. The U.S. State Department website is one source of information.

6) Include a paragraph in which you decide which one of the three countries to choose to complete the mission. Apply logical reasoning to make your choice. The logic you use in making these decisions must be clearly explained.Explain why that country is a more appropriate candidate than the other two countries.

Include three or more scholarly resources, including the textbook and The World Factbook.

Prepare this assignment according to the guidelines found in the GCU Style Guides and Templates, located in the Student Success Center.

This assignment uses a rubric. Review the rubric prior to beginning the assignment to become familiar with the expectations for successful completion.

You are required to submit this assignment to Turnitin. Please refer to the directions in the Student Success Center.

MAT144 Week 4 Mission Project: Part B Peer Review Assignment

Details:

Please follow these steps:

1. 1. Begin by posting a rough draft of your project by the deadline to the Mission Project: Part B Peer Review Forum by Wednesday, Day 3 of Topic 4.

3. 3. You will then need to post your completed Peer Review Worksheet to TWO places: to the Mission Project: Part B Peer Review Forum for your peer to review, as well as to the Mission Project: Part B Peer Review assignment box, so the instructor can grade your work by Friday, Day 5 of Topic 4.

4. 4. Attach the file with your completed Peer Review Worksheet to the Mission Project: Part B Peer Review Forum as a “reply” to the initial post of your peer’s first draft.

5. 5. Please note that to participate in the peer review process you must post the rough draft of your Mission Project: Part B essay by 11:59 pm (AZ time) on Wednesday, Day 3 of Topic 4.

If you do not submit the Rough Draft or Peer Review Worksheet to both places or if you review the wrong person, you may not receive full credit for this assignment.

MAT-144Peer Review Worksheet

For ground students: review two students one time, online:review one student one time.

Part of your responsibility as a student in this course is to provide quality feedback to your peers that will help them to improve their writing skills. This worksheet will help you practice providing that feedback.

Author’s name:

Peer reviewer’s name:

Reviewer

After reading through the draft, write a summary (three to five sentences)of the paper that includes your assessment of how well the essay meets the assignment requirements as specified in the syllabus and the rubric.

Summary:

Considereach of the following questions as you review the paper. Please be sure to indicate at least three positive aspects of the draft and at least three areas for improvement in reply to the questions at the bottom of this worksheet. Positive answers will give you specific elements of the draft to praise; negative answers will indicate areas in need of improvement and revision.

ReviewContent and Ideas

· How effectively does the essayidentify the main points that the writer would like to make?

· Is the logic the writer used to establish the content written in the paper clear?

· Does the writer use examples and concepts from the text to support his or her decision?

· How effectively does the essay’s content support the overall goal of the paper?

Organization

· How effectively does the introduction engage the reader while providing an overview of the paper?

· How effectively do the paragraphs develop the topic sentence and advance the essay’s ideas?

· How effectively does the conclusion provide a strong, satisfying ending, not a mere summary of the essay?

Format

· How closely does the paper follow GCU formatting style?Is it double-spaced in 12 pt. Times New Roman font?Does it have 1″ margins? Does it use headers (page numbers using appropriate header function)?Does it have a proper heading (with student’s name, date, course, and instructor’s name)?

· Are all information, quotations, and borrowed ideas cited in parenthetical GCU format?

· Are all sources listed on the references page in GCU format?

· Is the required minimum number of sources listed?

Language Use and Style

· Are the voice and tone of the essay effective in characterizing ideas and creating the appropriate mood?If “No,” please provide examples of ineffective or inappropriate voice and tone.

· How effectively does the paper incorporate a variety of sentence structures that strengthen the ideas, create vitality, and avoid choppiness in the writing?

· How would you assess the writer’s diction (i.e., word choice)? Does the writer use active verbs, concrete nouns, and precise words?

Grammar and Mechanics

· Does the writer use proper grammar, punctuation, and spelling?If “No,” please provide examples of errors in need of correction.

· Is the writing clear and comprehensible throughout the draft?If “No,” please provide examples in need of improvement.

Three things that I liked about your draft are:

Three things that could be improved are:

MAT144 Week 4 Mission Project: Part B Assignment

Details:

Continue with the country you selected in Mission Project: Part A. Refer to the resource Mission Project: Part B for complete assignment instructions.

Include three or more scholarly resources.

Prepare this assignment according to the guidelines found in the GCU Style Guides and Templates, located in the Student Success Center.

This assignment uses a rubric. Review the rubric prior to beginning the assignment to become familiar with the expectations for successful completion.

You are required to submit this assignment to Turnitin. Please refer to the directions in the Student Success Center.

Note: You are required to post a rough draft of your Mission Project: Part B for peer review by Wednesday, Day 3 of Topic 4. Refer to the Mission Project: Part B Peer Review assignment for complete instructions on the peer review.

MAT-144 Mission Project: Part B

Use the following resource to assist you in completing Part B of your Mission Trip assignment.

Adding to the paper you submitted for Part A of your project, develop a financial plan to fund your proposed mission project to that country. Write an additional 500–750-word narrative describing the country of your choice, the expenses you expect to incur for the trip, and how you will pay for those expenses. Your paper must include a budget in table format. Use the Budget Worksheet spreadsheet to assist you in creating your budget.

Include the following in your paper:

Provide reasonable estimates for the expenses that will be incurred during your trip and the sources used to create the estimates. These include at a minimum: transportation, supplies, food, and lodging.

For any expenses that will be incurred outside the United States, you must provide the amounts in both U.S. dollars and the local currency. Use the current exchange rate, and be sure to cite and reference your source according to GCU style.

Calculate several different ways to pay for your trip using the savings and loan information from Chapter 4 of your textbook, incorporating the following points into your plan.

You already have 10% of the money needed for your trip, which begins in five years. You decide to invest that money at 4% APR compounded quarterly. Calculate out how much this will grow to by the start of your trip using the Compound Interest Formula from p. 216 of your textbook.

A(t)=A_0 (1+r/N)^(N?t)

Here A(t) = value of the account after t years, A_0= the initial investment, r= APR (written as a decimal), N= number of times compounded per year,t= number of year.

A philanthropic company, Missions-R-Us, has agreed to give you $100 each month from now until the trip starts. This money will be invested in an account that earns 6% APR compounded monthly. Figure out how much this will amount to by the start of your trip using the Savings Plan Formula on p. 228 of your textbook.

A(t)=(PMT?((1+r/N)^(N?t)-1))/((r/N) )

Here PMT= the monthly contributions, r= annual interest rate as a decimal, N= number of times compounded annually (12 – once per month), t= time of the loan in years, A(t)= value of account after t years.

The remaining balance must be taken out as a loan. If the above will pay for your entire trip, you must still investigate these loan scenarios. You can consider taking out a $10,000 emergency fund at these rates. There are two banks willing to offer you a loan. Bank A will lend you a 5-year loan at 9% APR compounded monthly with monthly payments. Bank B will lend you a 10-year loan at 12% APR compounded monthly with monthly payments. Calculate the payment for each of these loans using Loan Payment Formula on p. 249 of your textbook and discuss the reasons for choosing one or the other.

PMT=(P?(r/N))/(1-(1+r/N)^(-N?t) )

Here P= the initial loan amount, r= annual interest rate as a decimal, N= number of times compounded annually, t= time of the loan in years, PMT= your monthly payment

Include all calculations, including the formulas used, formatted with the Equation Editor in Microsoft Word. If you use a spreadsheet to check your calculations, include the spreadsheet as a separate attachment.

Include three or more scholarly resources.

Prepare this assignment according to the guidelines found in the GCU Style Guides and Templates, located in the Student Success Center.

This assignment uses a rubric. Review the rubric prior to beginning the assignment to become familiar with the expectations for successful completion.

You are required to submit this assignment to Turnitin. Please refer to the directions in the Student Success Center.

MAT144 Week 6 Mission Project: Part C Statistical Study Assignment

Details:

Refer to Mission Project: Part C Statistical Study Resource for complete assignment instructions. Complete Mission Project: Part C Worksheet using the included Part C Data spreadsheet first and then prepare your written report according to the instructions. Submit both the completed worksheet and written report to your instructor.

Include two or more scholarly resources.

Prepare this assignment according to the guidelines found in the GCU Style Guides and Templates, located in the Student Success Center.

This assignment uses a scoring guide. Review the scoring guide prior to beginning the assignment to become familiar with the expectations for successful completion.

You are required to submit this assignment to Turnitin. Please refer to the directions in the Student Success Center.

MAT-144 Mission Project: Part C Statistical Study Worksheet

Answer the following based on the data presented in the included Part C Data spreadsheet. You will use the analysis you complete here to prepare a written report of your findings. Be sure to submit your written report and completed worksheet to your instructor.

1) Record the mean and median of each group of samples.

1. a. Original sample collected by mission team

2. i. Mean

3. ii. Median

4. b. Villager supplied sample

5. i. Mean

6. ii. Median

7. c. Student biologist collected sample

8. i. Mean

9. ii. Median

2) Look at the box plots and histograms for each of the datasets. Record any differences you notice in the charts. Does it appear from the charts that the villagers have access to cleaner water after the mission?

3) The mission team wants to do a statistical test to support whether or not the villagers have access to cleaner water. State the null and alternative hypotheses that can be used to test the data.

4) The results of a statistical test to compare the means of the samples are shown on the spreadsheet. Determine if there is statistically significant evidence that the means are different at the ? = 0.05 level.

MAT-144 Mission Project: Part C Statistical Study

Use the following resource to assist you in completing Part C of your Mission Trip assignment. You will also use Mission Project: Part C Worksheet and Part C Data spreadsheet to complete this assignment.

A friend of yours has recently come back from a mission trip. The mission team has collected some data. They need help analyzing this data and because you have just taken a math class and have been planning your own mission trip, your friend has asked you to help out.

The purpose of the mission trip was to bring clean water to a village in Sierra Leone. When the group arrived they took a sample of water from each of 100 randomly selected households around the village. One of the trip participants is planning to major in biology, so she was put in charge of analyzing the number of microbes in each water sample.All of this group’s data can is found in the included spreadsheet.

The group spent the next few weeks digging several wells around the village. The wells each produced clean water. However, the group was not sure whether the villagers would all use the wells to get all of their water or if they would continue to use their old water sources too. The group decided to take another sample of water from another 100 households one month after the wells were dug. To save time, they asked villagers to bring in samples of their water from home. They accepted the first 100 samples.

The group’s aspiring biologist who analyzed the data was worried about the integrity of the water samples that the villagers brought in themselves. At the last minute, she decided to collect some samples herself. She only had time to collect 20 samples from random households.

Analyze the data and record the results on the worksheet provided. You will use the results to write the report of your analysis of the data:

Once you complete your statistical calculations, prepare a report of your findings. Write a 750-1,000-word report of your analysis of the data for the mission team.Include the following in your report:

1) Report why you think that either the mean or the median is a better measure of central tendency in this case.Is the best measure of central tendency the same for all three samples?

2) Discuss the differences that you noticed between the samples when you reviewed the box plot and histograms.

3) Identify the null and alternative hypotheses.

4) Discuss the results of the statistical test. Be sure to include discussion of the statistical significance.

5) Consider the eight guidelines for a evaluating a statistical study found in section 5B of the textbook. Focus on the following guidelines in your analysis.

1. a. Guideline 1-Identify the Goal, Population, and Type of Study

2. b. Guideline 3-Look for Bias in the Sample

3. c. Guideline 4-Look for Problems in Defining or Measuring the Variable of Interest

4. d. Guideline 7-Check that the Results are Presented Fairly (Do the graphics appear to accurately represent the results?)

Include two or more scholarly resources.

Prepare this assignment according to the guidelines found in the GCU Style Guides and Templates, located in the Student Success Center.

This assignment uses a scoring guide. Review the scoring guide prior to beginning the assignment to become familiar with the expectations for successful completion.

You are required to submit this assignment to Turnitin. Please refer to the directions in the Student Success Center.

#MAT 144 All Weeks Discussions and Assignments Entire Course

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