What assumption is necessary about the population distribution to perform this test

At the optimal level, what is the expected (average) weekly profit?
November 30, 2020
Discuss the purpose of strategic planning in a health care environment.
November 30, 2020

A local pizza restaurant and a local branch of a national chain are located across the street from campus. The local pizza restaurant advertises that they deliver to the dormitories faster than the national chain. In order to determine whether this advertisement is valid, you and some friends have decided to order 10 pizzas from the local pizza restaurant and 10 pizzas from the national chain. Thus you have matched (paired) samples. For each of the 10 times that pizzas were ordered, you have one measurement from the local pizza restaurant and one from the national chain. The delivery times in minute are show in table: Time 1 2 3 4 5 6 7 8 9 10 Local 16.8 11.7 15.6 16.7 17.5 18.1 14.1 21.8 13.9 20.8 Chain 22.0 15.2 18.7 15.6 20.8 19.5 17.0 19.5 16.5 24.0 At the 0.05 level of significance, is there evidence that the mean delivery time for the local pizza restaurant is less than the mean delivery time for the national pizza chain? (5) What assumption is necessary about the population distribution to perform this test in i)

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