10.2. In order to evaluate if there is difference between the average daily sale

Question

10.2. In order to evaluate if there is difference between the average daily sales of two branches of a department store, the following data has been gathered. |Downtown store ni = 23 days X, -37 North Mall store n2 = 26 days X, =34 Sample Size Sample Mean (in $ 1000) Sample Standard Deviation L(in $1000) S4 S, =5 10.2.1. Assuming that the variances of the two populations are different (i.e., independent samples), determine the degrees of freedom to be used. ud 10.2.2. Using 5% level of significance, using the critical value or the p-1 conclude that the average daily sales o

Explanation / Answer

The degrees of freedom is tthe sum of sample size of two groups - 2.This will be =(n1+n2-2) = (26+23-2) = 47.

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