A simple forecasting method for weekly sales of flash drives used by a local computer dealer is to form the average of the two most recent sales figures. Suppose sales for the drives for the past 12 weeks were
Week |1 Sales86 12 73 4 7 10 75 72 83 132 65 110 90 67 92 98
A. Determine the one-step ahead forecasts made for periods 3 through 12 using this method.
B. Determine the forecast errors for these periods.
C. Compute the MAD, the MSE, and the MAPE based on the forecast errors computed in part (B)
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