Predict the sales for May using a. weighted three-month moving average with weights 5, 3, and 2, where 5 is the weight for last month’s sale, 3 is the weight for the sales two months ago, and 2 is the weight for sales three months ago. b. exponential smoothing with α = 0.4. Assume the forecast for January was 25 laptops.

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Given the data below:



Month

Laptops Sold

January

35

February 

47

March

31

April

39

 

Predict the sales for May using

a. weighted three-month moving average with weights 5, 3, and 2, where 5 is the weight for last month’s sale, 3 is the weight for the sales two months ago, and 2 is the weight for sales three months ago.

b. exponential smoothing with α = 0.4. Assume the forecast for January was 25 laptops. 

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