7 (10 pts) Weekly sales of copy paper at Cubicle Suppliers are provided in the table below. Compute a three-period moving average and exponential smoothing with alpha 0.5 given the forecast for 1" week as 15. Compute the MAD for both forecasting methods. Which model is more accurate? Forecast week 6 with the more accurate method. Week Sales (Cases)er ecot 1 17 15 21 3 27 4 31 19

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