Question

As a customer satisfaction consistency measure, Tony’s Bistro monitors the size of the tips its waiters receive for serving tables of two customers. The restaurant’s manager believes if the standard deviation of these tips exceeds $ 3.00, there could be an issue with inconsistent service among the wait staff. The tips from randomly selected tables with two customers at each table can be found in the Excel file tips.xlsx and are shown as follows:
a. Using α = 0.05, determine if there is any indication of inconsistent service at Tony’s.
b. Verify your results using PHStat.
c. Interpret the p value obtained from the software.


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  • CreatedJuly 28, 2015
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