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    Please help... b & c can be done with the attached template, but I do not know how to implement the data...

    Historical demand for a product is:
    Jan 12
    Feb 11
    March 15
    APril 12
    May 16
    June 15

    a. using weighted moving average with weights of .60, .30 and .10. What is July forecast?
    b. Using a simple three month moving average, find July forecast?
    c. Using single exponential smoothing with alpha= 0.2 and a June forecast = 13, find the July forecast. Make whatever assumptions you wish.

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