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Using DemandData.xisx file on the course website, and using the "Moving averages
der and Forecasting duIze the moving averages for periods 81 through
ons 100. In particular, start with forecast for period 81 using data from the previous 13
periods, i.e., from periods 68 through 80. Continue this process till you generate
forecast for period 100. Now calculate errors, the differences between your
forecasts and the data. What is the Mean Absolute Deviation of these errors?
Choose the closest numerical answer.
O
34.33
8.46
O
17.51
O
7.30
15.00
O
9.17

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