Question
Jane White has recorded the following sales figures for the last year of her business: January $35,645, February $35,456, March $31,270, April $32,129, May $34,456,
Jane White has recorded the following sales figures for the last year of her business: January $35,645, February $35,456, March $31,270, April $32,129, May $34,456, June $35,356, July $36,218, August $35,456, September $ 34,250, October $32,156, November $30,125, December $32,275. She wants to select from one of three models: a three-month moving average, a weighted moving average (she believes the weights would be 0.2, 0.3, and 0.5) and an exponential smoothing average in which she uses an alpha of 0.2 and an assumed forecast for January of year one of $35,000.
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