c$.$ What is the average gross margin for the bottom $10$ SKUs?

d$.$ What is the t Stat?

e$.$ Assuming that the alpha is set at $0\mathrm{.}05,$ would you reject or not reject the null hypothesis?

f$.$ Assuming that the alpha is set at $0\mathrm{.}01,$ would you reject or not reject the null hypothesis?

g$.$ Is there a statistical difference between the top $10$ and bottom $10$ SKUs ranked by gross margin?

Complete this question by entering your answers in the tabs below.

ReqA

Req B and C

Req D

Req $E$ and $F$

Req G

What is the null hypothesis? What is the alternative hypothesis?

$\backslash$table$[[H_0$ : The average gross margin of the top ten SKUs is$,$as the average gross margin of the bottom $10$ SKUs.$],[H_A$ : The average gross margin of the top ten SKUs is$,$as the average gross margin of the bottom $10$ SKUs.$]]$