5) Weighted moving average, n=2, weights (3, 2): MAD = _______________.

6). Weighted moving average, n=3, weights (3,2,1): MAD = ________________.

7) Weighted moving average, n=3, weights (7,4,2): MAD = _______________.

8) Exponential smoothing, =0.2, forecast of week 1 = 50: MAD = _______________.

1. (25 points) Suppose we at the beginning of Week 13 and want to do the forecast of the sales in Week 13. To do that, we collect the data of actual sales of the past 12 weeks, as in the table below. weeks 1 2 3 4 5 6 Actual Sales 50 70 85 64 76 75 94 79 87 83 104 9 10 11 12 13 Use OM to calculate MAD for each of the following methods/parameters. (Keep 3 digits after decimal point.) 2) Moving average, n=2: MAD = 9.2 3) Moving average, n=3: MAD = 6.963 4) Moving average, n=4: MAD = 7.188 5) Weighted moving average, n=2. weights (3, 2): MAD = 6). Weighted moving average, n=3, weights (3.2.1): MAD = 7) Weighted moving average, n=3. weights (7.4.2): MAD= 8) Exponential smoothing, a=0.2, forecast of week 1 = 50: MAD