Calculate MAD MSE MAPE in the compare exponential smoothing sheet. 0.5 Quarters 1,2,3,4,5,6,7,8,9…

Calculate MAD MSE MAPE in the compare exponential smoothing sheet. 0.5
Quarters 1,2,3,4,5,6,7,8,9
actual tonnage unloaded: 180, 168, 159, 175, 190, 205, 180, 182
forecast: 175
Data
Quarter
Actual Tonnage Unloaded
Forecast
1
180
175
2
168
175
3
159
175
4
175
175
5
190
175
6
205
175
7
180
175
8
182
175
9
175