Question: Use the following data to compute forecasts for the first two months of the following year using (a) a three-period moving average and (b) exponential smoothing with alpha =0.2 and an initial forecast for January of 200.

Also, compute the measures of forecasting accuracy, MAD, MSE, and MAPE, in each case. Comment on the accuracy of the two forecasting methods and select one of the two methods providing appropriate justification.