Please help. I'm stuck.
for exponential smoothing: next period forecast =α*last period actual+(1-α)*last period forecast |
exponential smoothing | ||
month | value | forecast |
1 | 17 | |
2 | 21 | 17.00 |
3 | 19 | 17.40 |
4 | 23 | 17.56 |
5 | 18 | 18.10 |
6 | 16 | 18.09 |
7 | 20 | 17.88 |
8 | 18 | 18.10 |
9 | 22 | 18.09 |
10 | 20 | 18.48 |
11 | 15 | 18.63 |
12 | 22 | 18.27 |
a)
b)
α=0.1 provides more accurate forecasts based upon MAE , so the results are not the same
c)
α =0.1 provides more accurate forecasts based upon MAPE
Please help. I'm stuck. DATA: Gassins These data show the number of palons of gasoline sold...
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