EBK STATISTICS FOR BUSINESS & ECONOMICS
12th Edition
ISBN: 8220100460463
Author: Anderson
Publisher: CENGAGE L
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Chapter 10.4, Problem 32E
An American Automobile Association (AAA) study investigated the question of whether a man or a woman was more likely to stop and ask for directions (AAA, January 2006). The situation referred to in the study stated the following: “If you and your spouse are driving together and become lost, would you stop and ask for directions?” A sample representative of the data used by AAA showed 300 of 811 women said that they would stop and ask for directions, while 255 of 750 men said that they would stop and ask for directions.
- a. The AAA research hypothesis was that women would be more likely to say that they would stop and ask for directions. Formulate the null and alternative hypotheses for this study.
- b. What is the percentage of women who indicated that they would stop and ask for directions?
- c. What is the percentage of men who indicated that they would stop and ask for directions?
- d. At α = .05, test the hypothesis. What is the p-value, and what conclusion would you expect AAA to draw from this study?
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Chapter 10 Solutions
EBK STATISTICS FOR BUSINESS & ECONOMICS
Ch. 10.1 - The following results come from two independent...Ch. 10.1 - Consider the following hypothesis test....Ch. 10.1 - Consider the following hypothesis test....Ch. 10.1 - Cond Nast Traveler conducts an annual survey in...Ch. 10.1 - The USA Today reports that the average expenditure...Ch. 10.1 - Suppose that you are responsible for making...Ch. 10.1 - Consumer Reports uses a survey of readers to...Ch. 10.1 - Will improving customer service result in higher...Ch. 10.2 - The following results are for independent random...Ch. 10.2 - Consider the following hypothesis test....
Ch. 10.2 - Consider the following data for two independent...Ch. 10.2 - The U.S. Department of Transportation provides the...Ch. 10.2 - The average annual cost (including tuition, room,...Ch. 10.2 - Are nursing salaries in Tampa, Florida, lower than...Ch. 10.2 - Commercial real estate prices and rental rates...Ch. 10.2 - The College Board provided comparisons of...Ch. 10.2 - Periodically, Merrill Lynch customers are asked to...Ch. 10.2 - Researchers at Purdue University and Wichita State...Ch. 10.3 - Consider the following hypothesis test. H0:d0Ha:d0...Ch. 10.3 - The following data are from matched samples taken...Ch. 10.3 - A market research firm used a sample of...Ch. 10.3 - The price per share of stock for a sample of 25...Ch. 10.3 - Bank of Americas Consumer Spending Survey...Ch. 10.3 - The Global Business Travel Association reported...Ch. 10.3 - The College Board SAT college entrance exam...Ch. 10.3 - Scores in the first and fourth (final) rounds for...Ch. 10.3 - A manufacturer produces both a deluxe and a...Ch. 10.4 - Consider the following results for independent...Ch. 10.4 - Consider the hypothesis test H0:p1p20Ha:p1p20 The...Ch. 10.4 - A Businessweek/Harris survey asked senior...Ch. 10.4 - The Professional Golf Association (PGA) measured...Ch. 10.4 - An American Automobile Association (AAA) study...Ch. 10.4 - Chicago OHare and Atlanta Hartsfield-Jackson are...Ch. 10.4 - Businessweek reported that there seems to be a...Ch. 10.4 - In a test of the quality of two television...Ch. 10.4 - Winter visitors are extremely important to the...Ch. 10.4 - The Adecco Workplace Insights Survey sampled men...Ch. 10 - Safegate Foods, Inc., is redesigning the checkout...Ch. 10 - Home values tend to increase over time under...Ch. 10 - Mutual funds are classified as load or no-load...Ch. 10 - The National Association of Home Builders provided...Ch. 10 - Prob. 42SECh. 10 - Country Financial, a financial services company,...Ch. 10 - A large automobile insurance company selected...Ch. 10 - Medical tests were conducted to learn about...Ch. 10 - Vacation occupancy rates were expected to be up...Ch. 10 - Prob. 47SECh. 10 - One of the researchers voiced concern about the...
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