QUESTION 9 Given the demand and forecast values shown in the table below, Period Demand Forecast June 520 468 495 510 August 510 September 489 500 July 521 What is the forecasting value for October using 3-Month Weighted Moving Average, with a weight allocation of 0.50, 0.3 and 0.2, respectively? A 498.3 B.511.3 C.508.3 D.496.5 QUESTION 10 Using the data above, the forecast error for July is A 15 B.-15 C.2 D.-2 QUESTION 11 Using the data above, the mean absolute deviation (MAD) at the end of September is A. 27.19 B.22.25 C. 15.28 D.O
