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
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ISBN:9780547587776
Author:HOLT MCDOUGAL
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Chapter11: Data Analysis And Probability
Section: Chapter Questions
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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
Transcribed Image Text: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
Transcribed Image Text: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
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