Question: table [ [ Month , table [ [ Actual ] , [ ( SThonsands ) ] ] ] , [ January , 4

\table[[Month,\table[[Actual],[(SThonsands)]]],[January,42],[February,58],[March,58],[April,77],[May,91],[Irne,82],[IJly,74],[Angust,68],[September,71],[October,65],[November,50],[December,45]]
a. Use a three-month moving average to forecast the sales for the months May through December. [5 Marks]
b. Use a three-month moving weighted average to forecast the sales for the months May through December. Use weights (3/6),(2/6), and (1/6), giving more weight to more recent data. [5 Marks]
c. Use exponential smoothing with an alpha of 0.7 to forecast the sales for the months of May through December. Assume that the initial forecast for January was $40,000. Start error measurement in May. [5 Marks]
\table[[Month,\table[[Actual],[(SThonsands)]]],[January,42],[February,58],[March,58],[April,77],[May,91],[Irne,82],[IJly,74],[Angust,68],[September,71],[October,65],[November,50],[December,45]] a. Use a three-month moving average to forecast the sales

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