Next, consider using a simple exponential smoothing model. In your analysis, test two alpha values, .2 and .4. Use the same criteria for evaluating the model as in part 1. When using an alpha value of .2, assume that the forecast for week 1 is the past three week average (the average demand for periods 23 22 and 21). For the model using an alpha of .4, assume that the forecast for week 1 is the past five week average.