Question: Answer the following questions using the data from the Excel file cafeteria.xlsx described in Problem 16.34. a. Forecast the food services sales for each day

Answer the following questions using the data from the Excel file cafeteria.xlsx described in Problem 16.34.

a. Forecast the food service’s sales for each day next week using seasonal dummy variables and a best subsets regression.

b. Interpret the meaning of the coefficients for the seasonal dummy variables.

c. Calculate the MAD for this forecast.

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