Question: Period Demand Forecast 1 Error |Error| Error 2 Error % 1 68 66 2 75 68 3 70 72 4 74 71 5 69 72
| Period | Demand | Forecast 1 | Error | |Error| | Error2 | Error % | |
| 1 | 68 | 66 | |||||
| 2 | 75 | 68 | |||||
| 3 | 70 | 72 | |||||
| 4 | 74 | 71 | |||||
| 5 | 69 | 72 | |||||
| 6 | 72 | 70 | |||||
| 7 | 80 | 71 | |||||
| 8 | 78 | 74 | |||||
| MAD | MSE | MAPE | |||||
Find the MAD, MSE, and MAPE using excel formulas
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