Question: Use the data in PHILLIPS.RAW for this exercise. (i) Estimate an AR(1) model for the unemployment rate. Use this equation to predict the unemployment rate

Use the data in PHILLIPS.RAW for this exercise.
(i) Estimate an AR(1) model for the unemployment rate. Use this equation to predict the unemployment rate for 2004. Compare this with the actual unemployment rate for 2004. (You can find this information in a recent Economic Report of the President.)
(ii) Add a lag of inflation to the AR(1) model from part (i). Is inft-l statistically significant?
(iii) Use the equation from part (ii) to predict the unemployment rate for 2004. Is the result better or worse than in the model from part (i)?
(iv) Use the method from Section 6.4 to construct a 95% prediction interval for the 2004 unemployment rate. Is the 2004 unemployment rate in the interval?

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i The estimated AR1 model is unem 149742 unem1 052 089 n 55 R 566 999 In 2003 the unemployment rate was 60 so the predicted unemployment rate for 2004 ... View full answer

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