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The table below is the data set of the number of preorders received for a partic...
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The table below is the data set of the number of preorders received for a particular game on a weekly basis.
The forecaster uses the Holt-Winters Exponential Smoothing for nonseasonal series to forecast the number of preorders in future time periods.
He uses α = 0.8 and β = 0.5. (Hint: Use the formula from the text to arrive at the answers.)
Week | Preorders |
1 | 266 |
2 | 310 |
3 | 330 |
4 | 342 |
5 | 388 |
6 | 462 |
7 | 548 |
8 | 624 |
9 | 666 |
10 | 686 |
11 | 726 |
What is initial estimate of the trend value for week 2?
Write the answer as following :
XX