12.19 A resort area has three seafood restaurants, which employ stu- dents during the summer season. The local chamber of commerce took a random sample of five servers from each restaurant and recorded the tips they received on a recent Friday night. The results (in dollars) of the survey are shown in the table below. ASsume that the Friday night for which the data were collected is typical of all Friday nights of the summer season. Hwang's Barzini's Jack's 97 67 93 114 85 102 105 92 98 85 78 80 120 90 91 a. Would a student seeking a server's job at one of these three restaurants reject the null hypothesis that the mean tips on a Friday night are the same for all three restaurants? Use a 5% level of significance. b. What will your decision be in part a if the probability of mak- ing a Type I error is zero? Explain
12.19 A resort area has three seafood restaurants, which employ stu- dents during the summer season. The local chamber of commerce took a random sample of five servers from each restaurant and recorded the tips they received on a recent Friday night. The results (in dollars) of the survey are shown in the table below. ASsume that the Friday night for which the data were collected is typical of all Friday nights of the summer season. Hwang's Barzini's Jack's 97 67 93 114 85 102 105 92 98 85 78 80 120 90 91 a. Would a student seeking a server's job at one of these three restaurants reject the null hypothesis that the mean tips on a Friday night are the same for all three restaurants? Use a 5% level of significance. b. What will your decision be in part a if the probability of mak- ing a Type I error is zero? Explain
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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