Although you should not expect a perfectly fitting model for any time-series data, you can consider the

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Although you should not expect a perfectly fitting model for any time-series data, you can consider the first differences, second differences, and percentage differences for a given series as guides in choosing an appropriate model.

Although you should not expect a perfectly fitting model for

For this problem, use each of the time series presented in the table above and stored in Tsmodel1 :
a. Determine the most appropriate model.
b. Compute the forecasting equation.
c. Forecast the value for 2015.

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Statistics For Managers Using Microsoft Excel

ISBN: 9780134173054

8th Edition

Authors: David M. Levine, David F. Stephan, Kathryn A. Szabat

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