Question

The following time series shows the sales of a particular product over the past 12 months.
a. Construct a time series plot. What type of pattern exists in the data?
b. Use a = 0.3 to compute the exponential smoothing values for the time series.
c. Use trial and error to find a value of the exponential smoothing coefficient a that results in a relatively small MSE.


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  • CreatedNovember 21, 2015
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