Question: 2. List of formulas: Forecast error = Et = Dt Ft MAD = (|Et|)/n MSE = ((Et)^2)/n MAPE = [(|Et|/Dt)(100)]/n John rents a tractor to

2. List of formulas:

Forecast error = Et = Dt Ft MAD = (|Et|)/n MSE = ((Et)^2)/n MAPE = [(|Et|/Dt)(100)]/n

John rents a tractor to contractors and walk-in customers. He has prepared a forecast for weeks 4 through 6. The actual demands of the tractor and the forecasts made for each of the last 3 weeks are shown in the table below. Round to four decimal places. --------------------------------------------------- Week Demand Forecast --------------------------------------------------- 4 24 29 5 21 19 6 15 21 --------------------------------------------------- Answer the following questions.

What is the absolute forecast error for week 4?

A. 5.0000

B. 7.0000

C. 9.0000

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