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). Variable A: 0.15- 0.10 - 0.05- 0.00 -0.05 - -0.10 - -0.15- 10 15 20 Variable B: 1.00 - 0.75- 0.50 - 0.25 - 0.00 12 18 24 lag [1M]

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). Variable A: 0.15- 0.10 - 0.05- 0.00 -0.05 - -0.10 - -0.15- 10 15 20 Variable B: 1.00 - 0.75- 0.50 - 0.25 - 0.00 12 18 24 lag [1M]

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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