Pizza companies are competitive in the amount of time it takes to deliver the pizza. Is...

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Pizza companies are competitive in the amount of time it takes to deliver the pizza. Is...

Pizza companies are competitive in the amount of time it takes to deliver the pizza. Is there a significant difference in the average time it takes to deliver a pizza between Pizza Hut and Dominos? The following data was collected from a sample of deliveries of both companies; test the hypothesis at a 0.01 level of significance with 10 degrees of freedom(assume unequal variances). Pizza Hut: sample mean = 18.68, sample standard deviation = 1.64, sample size = 5 Dominos: sample mean = 20.23, sample standard deviation = 2.74, sample size = 7. Calculate the test statistic.

-1.82

-0.96

-1.22

10.0

math Statistics-And-Probability

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Answer #1

The statistical software output for this problem is :

Test statistics = -1.22

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