Question: Using the data from Exercise 42, develop and compare the following models. In exercise a) Fit an appropriate autoregressive model by testing for the significance

Using the data from Exercise 42, develop and compare the following models.

In exercise

a) Fit an appropriate autoregressive model by testing for the significance of each autoregressive term.
b) Obtain a forecast for the week of May 28, 2007.
c) Compare your forecast to the actual value (by computing APE).
d) Do you think this is an appropriate model for forecasting this time series?

250 200 50t "wyn 2002 2003 2004 2005 2006 2007 Year

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