The Following Time Series Shows the Number of Units of a Particular

question 53

Essay

The following time series shows the number of units of a particular product sold over the past six months.

a.Compute a 3-month moving average (centered)for the above time series.
b.Compute the mean square error (MSE)for the 3-month moving average.
c.Use $\alpha$ = 0.2 to compute the exponential smoothing values for the time series.
d.Forecast the sales volume for month 7.

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