What is the forecast for May based on a weighted moving average applied to the following past demand data and using the weights:
4, 3, 2 (largest weight is for most recent data)?
Nov. Dec. Jan. Feb. Mar. April
37 36 40 42 47 43
2 × 42 + 3 × 47 + 4 × 43 = 84 + 141 + 172 = 397; 397/9 = 44.1
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