# 12.19 A resort area has three seafood restaurants, which employ stu-dents during the summer season. The local chamber of commercetook a random sample of five servers from each restaurant andrecorded the tips they received on a recent Friday night. The results(in dollars) of the survey are shown in the table below. ASsume thatthe Friday night for which the data were collected is typical of allFriday nights of the summer season.Hwang'sBarzini'sJack's9767931148510210592988578801209091 a. Would a student seeking a server's job at one of these threerestaurants reject the null hypothesis that the mean tips on aFriday 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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Step 1

12.19

a.

State the null and alternative Hypotheses:

Null Hypothesis:

H0: The mean tips on Friday night are same for all three restaurants.

Alternative Hypothesis:

H1: At least two mean  are tips on Friday night are different for three restaurants.

Excel Procedure:

1. Enter the data for Barzini, Hwang and Jack in Excel sheet.
2. Go to Data
3. Click on Data Analysis.
4. Select ‘Anov...

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