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

Question 34

Essay

The following time series shows the number of units of a particular product sold over the past six months. 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.
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 α\alpha = 0.2 to compute the exponential smoothing values for the time series.
d.Forecast the sales volume for month 7.

Correct Answer:

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a.5, 4, 7
b.MSE = 73...

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