Simple exponential forecasts for periods 5-7, using a weight of 0.4 for alpha. For the F4 value needed for calculating the forecast for period 5, use the average of the demand of the periods 1-4.
Period | Demand | Simple Moving Average | Weighted Moving Average | Exponential Smoothing | Trend Projection |
1 | 120 | ||||
2 | 127 | ||||
3 | 114 | ||||
4 | 125 | ||||
5 | 133 | 121.5 | 121.6 | ||
6 | 130 | 124.75 | 126.2 | ||
7 | 135 | 125.5 | 128.3 | ||
MAD | — | ||||
MAPE | — |