1) The actual values for 12 periods (shown in order) are:
(1) 45 (2) 52 (3) 48 (4) 59 (5) 55 (6) 54 (7) 64 (8) 59 (9) 72 (10) 66 (11) 64 (12) 78
Using a 5 period simple moving average, the forecast for period 13 will be:
2) Using the 4 period weighted moving average, the forecast for period 13 will be:
3) With exponential smoothing, the forecast for period 13 will be:
4) With linear regression, the forecast for period 13 will be:
5) With quadratic regression, the forecast for period 13 will be:
6) Considering only the forecasts for period 6-12, what is the lowest MAD value for any of the methods?