1. The Grand Tour Company had demand for an item for months January through September. Your manager needs to compare two forecasting strategies to see which one performed better over time.
   1. Forecast April through September using a 3-month moving average.

Month	Actual	Month	Actual
January	110	June	180
February	130	July	140
March	150	August	130
April	170	September	140
May	160

1. Use simple exponential smoothing with an alpha of 0.3 to estimate April through September, using the average of January through March as the initial forecast for April.
2. Use MAD to decide which method produced the better forecast over the 6- month period, and advise your manager of the better method.