Question: Compute 'by hand' the forecasts for the next 4 months for the ARIMA(3,1,1). Show all of your work. You will need to work with (1

Compute 'by hand' the forecasts for the next 4 months for the ARIMA(3,1,1). Show all of your work. You will need to work with (1 1B 2B 2 3B 3 )(1 B)yt = (1 + 1B)et and use the 3 steps procedure.

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