Question

Suppose a manager at a local Domino’s Pizza would like to determine if the average time it takes to deliver a pizza and return to the store differs for the four employees who make the deliveries. The following data show a random sample of the delivery times for each driver. These data can also be found in the Excel file Dominos. xlsx.
a. Using α = 0.05, determine if the manager has enough evidence to conclude there is a difference in the delivery times of the four drivers.
b. If warranted, perform a multiple comparison test to determine which pairs are different using α = 0.05.
c. Verify your results with Excel or PHStat.


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  • CreatedJuly 28, 2015
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