Question: 2. (40 points in total) (2.1) (18 points) Given the actual sales of an item in the past 8 months as in the table, calculate

2. (40 points in total) (2.1) (18 points) Given

2. (40 points in total) (2.1) (18 points) Given the actual sales of an item in the past 8 months as in the table, calculate the 2-month moving average forecasts up to month 9, and forecast errors. Put the results in the table. (Reminder: Place your moving average results in the correct rows.) (Keep one digits after decimal point.) Month Actual sales 2-month moving average forecasts (n=2) Forecast Errors 1 2 3 4 5 6 7 8 9 720 840 750 980 650 820 760 780 Calculate MAD for the above moving average forecasts with n=2: MAD

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