Question: Repeat Exercise 10 80 without assuming that the standard deviations for

Repeat Exercise 10.80 without assuming that the standard deviations for the two populations are the same but considering the following two situations.
a. Using the sample standard deviations given in Exercise 10.80.
b. Using sample standard deviations of 1.33 and .72 for fire drills and closing time, respectively.


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  • CreatedAugust 25, 2015
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