Question: You are given an annual time series with 50 consecutive values and asked to fit a fifth-order autoregressive model. a. How many comparisons are lost

You are given an annual time series with 50 consecutive values and asked to fit a fifth-order autoregressive model.

a. How many comparisons are lost in the development of the autoregressive model?

b. How many parameters do you need to estimate?

c. Which of the original 50 values do you need for forecasting?

d. State the model.

e. Write an equation to indicate how you would forecast j years into the future.

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