Question: 15 points. Use the data in the Excel file for this problem. These data represent monthly sales in units) of all-terrain vehicle produced by a

15 points. Use the data in the Excel file for

15 points. Use the data in the Excel file for this problem. These data represent monthly sales in units) of all-terrain vehicle produced by a major firm. 1 Construct an exponential smoothing forecast. Provide a forecast for periods 2-25. Use a smoothing constant of .40. Calculate the errors as well as MAD and MAPE. Period 1 2 3 I 600 V AWN- 5 6 7 12 Sales (Units) 985 952 1,023 1,136 1,856 2,214 1,652 1,755 1,224 1,147 1,029 974 1,040 996 1,055 1,246 2,014 2,589 1,899 1,852 1,314 1,151 1,132 1,156 13 14 15 16 17 18 19 20 21 22 23 24

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