QUESTION 2 a. Month Demand 1 45 234 In 2 48 43 4 48 5 49 6. 54 7 47 8 50 9 10 46 47 Using the table above, calculate two forecasts using the following method:- i. ii. First, for periods 4 through 10, develop the exponentially smoothed forecasts using a forecast for period 3 (F3) of 45.0 and an alpha of 0.4. [3 marks] Calculate the weighted moving average for periods 4 through 10, using weights of .70, .20, and .10, with 0.70 applied to the most recent data. [3 marks] iii. Calculate the mean absolute deviation (MAD) for each forecasting procedure. Which forecasting procedure would you select? Why? [6 marks] b. The number of disk drives (in millions) made at a plant in China during the past 5 years follows: Year Disc Drives 1 140 2 160 3 190 4 200 5 210 i. Forecast the number of disk drives to be made next year, using linear regression. [13 marks]