8. A manager has been using a certain forecasting technique to forecast demand for word processing units for the past ten periods. Actual and forecasted amounts are shown below. He had difficulties in identifying whether this technique is better than the second moving average. Find the MAD for the manager's forecasting technique. Period Demand The manager's forecast 1 90 95 2 85 88 3 91 93 4 92 67 A. 8.00 B. 8.25 C. 8.50 D. 8.75 E. 9.00 9. Using question 8. Find the MAD for the second moving average technique. A. 3.00 B. 3.25 C. 3.50 D. 3.75 E. 4.00