In the following estimated regression equation relating sales to inventory investment and advertising expenditures was given. = XXXXXXXXXX x 1 + 8 x 2 The data used to develop the model came from a...

In the following estimated regression equation relating sales to inventory investment and advertising expenditures was given.

 = 25 + 10x
₁ + 8x
₂

The data used to develop the model came from a survey of 10 stores; for these data SST = 16,000 and SSR = 12,000.

a. Compute SSE, MSE, and MSR.

b. Use anFtest and a .05 level of significance to determine whether there is a relationship among the variables.