ECON1064 Quantitative Analysis - Final Assessment Questions

Question 7

The following plots have been obtained for a time series.

1. Suggest an appropriate ARIMA model. (2 marks).
2. The following ARIMA output has been obtained from R. Based on this output,
   which model would you recommend for forecasting? (2 marks).
3. If your selected model in part b) above has a p-value of 0.13 in the Ljung-Box test, would you recommend using this model? Explain why or why not. (2 marks).

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