Question: 1. Calculate mean absolute deviation (MAD), mean absolute percent error (MAPE), and Mean Squared Error (MSE) based on below information. MAD Period Demand Forecast Error

1. Calculate mean absolute deviation (MAD), mean absolute percent error (MAPE), and Mean Squared Error (MSE) based on below information. MAD Period Demand Forecast Error Absolute Error 1 150

Period Demand Forecast Error Absolute
1 150 135
2 145 155
3 160 145
4 141 160
5 143 147

MAD=

MAPE

Period Demand Forecast
1 150 135
2 145 155
3 160 145
4 141 160
5 143 147

MAPE=

MSE=

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