Essentials of Statistics for Business and Economics (with XLSTAT Printed Access Card)
8th Edition
ISBN: 9781337114172
Author: David R. Anderson, Dennis J. Sweeney, Thomas A. Williams, Jeffrey D. Camm, James J. Cochran
Publisher: Cengage Learning
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Chapter 10.3, Problem 26E
PGA Tour Scores. Scores in the first and fourth (final) rounds for a sample of 20 golfers who competed in PGA tournaments are shown in the following table. Suppose you would like to determine if the mean score for the first round of a PGA Tour
- a. Use α = .10 to test for a statistically significantly difference between the population means for first- and fourth-round scores. What is the p-value? What is your conclusion?
- b. What is the point estimate of the difference between the two population means? For which round is the population mean score lower?
- c. What is the margin of error for a 90% confidence
interval estimate for the difference between the population means? Could this confidence interval have been used to test the hypothesis in part (a)? Explain.
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Chapter 10 Solutions
Essentials of Statistics for Business and Economics (with XLSTAT Printed Access Card)
Ch. 10.1 - The following results come from two independent...Ch. 10.1 - 2. Consider the following hypothesis test.
The...Ch. 10.1 - Consider the following hypothesis test....Ch. 10.1 - 4. Condé Nast Traveler conducts an annual survey...Ch. 10.1 - The USA Today reports that the average expenditure...Ch. 10.1 - Hotel Price Comparison. Suppose that you are...Ch. 10.1 - Prob. 7ECh. 10.1 - Increases in Customer Satisfaction. Will improving...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 - Miles Driven Per Day. The U.S. Department of...Ch. 10.2 - Annual Cost of College. The increasing annual cost...Ch. 10.2 - Prob. 14ECh. 10.2 - Prob. 15ECh. 10.2 - Effect of Parents’ Education on Student SAT...Ch. 10.2 - Comparing Financial Consultant Ratings....Ch. 10.2 - Prob. 18ECh. 10.3 - Consider the following hypothesis test.
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