The file S12_72.xlsx contains data on a motel chain’s revenue and advertising.
a. Use these data and multiple regression to make predictions of the motel chain’s revenues during the next four quarters. Assume that advertising during each of the next four quarters is $50,000.
b. Use simple exponential smoothing to make predictions for the motel chain’s revenues during the next four quarters.
c. Use Holt’s method to make forecasts for the motel chain’s revenues during the next four quarters.
d. Use Winters’ method to determine predictions for the motel chain’s revenues during the next four quarters.
e. Which of these forecasting methods would you expect to be the most accurate for these data?