For the demand values and the January forecast shown in the table below.
a) find the Exponentially Smoothed forecast for April using α = 0.30
b) calculate the MAD for the forecast
c) find 2 month weighted moving average for March through May, using 0.70 for the most recent data
| Period | Demand | Forecast | |Demand-Forecast| |
| January | 500 | 480 | 20 |
| February | 476 | ||
| March | 503 | ||
| April | 510 |
