Question: Answer the following questions using the data from the Excel file amazon.xlsx described in Problem 16.30: a. Forecast the advertising revenue for each quarter in

Answer the following questions using the data from the Excel file amazon.xlsx described in Problem 16.30:

Revenue (million $) Quarter 2015 2016 2017 22.72 29.13 35.71 2 23.19 30.40 37.96 3 25.36 32.71 43.74 4 35.75 43.74 60.50 1,


a. Forecast the advertising revenue for each quarter in 2018 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.

Revenue (million $) Quarter 2015 2016 2017 22.72 29.13 35.71 2 23.19 30.40 37.96 3 25.36 32.71 43.74 4 35.75 43.74 60.50 1,

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