Question: 16.29 Using the data for Problem 16.17 on page 602 concerning the number of automobiles assembled in the United States from 1999 to 2018 (stored
16.29 Using the data for Problem 16.17 on page 602 concerning the number of automobiles assembled in the United States from 1999 to 2018 (stored in Auto Production ),
a. fit a third-order autoregressive model to the number of automobiles assembled in the United States and test for the significance of the third-order autoregressive parameter. (Use a = 0.05.)
b. if necessary, fit a second-order autoregressive model to the number of automobiles assembled in the United States and test for the significance of the second-order autoregressive parameter.
(Use a = 0.05.)
c. if necessary, fit a first-order autoregressive model to the number of automobiles assembled in the United States and test for the significance of the first-order autoregressive parameter. (Use a = 0.05.)
d. forecast the number of automobiles assembled in the United States for 2019.
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