ECON1064 Quantitative Analysis - Final Assessment Questions

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Question 3

The following ACF plots were produced for raw data of monthly sales of two different variables, A and B.
a) Explain which variable is likely to be easier to forecast. (3 marks).
b) Explain how your answer to part a) would change if these were residuals of an ARIMA model instead of “raw data of monthly sales”. (3 marks).

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