a. Use the following data on retail truck sales in the southern United States (TS), in thousands of dollars, to prepare a time-series decomposition forecast of TS for 2008Q1-2008Q4:
c. Plot your forecast values of TS along with the actual values.
d. Compare the results from your time-series decomposition model with those obtained using a Winters' exponential smoothing model in terms of both fit and accuracy.
This question was answered on: Jul 11, 2017
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