brossfieldm57111 brossfieldm57111
  • 25-05-2023
  • Mathematics
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The accompanying data table shows the value, in dollars, of a certain stock index as an annual time series. Use the data to complete parts (a) through (d). a. Fit a third-order autoregressive model to the stock index and test for the significance of the third-order autoregressive parameter. (Use = 0.05.) What are the hypotheses for this test?

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