Question: Using the figures in the table below: a. Demonstrate the 4-period moving average method. (8 marks) b. Calculate the four seasonal indexes for the four

Using the figures in the table below: a. Demonstrate the 4-period moving average method. (8 marks) b. Calculate the four seasonal indexes for the four quarters. (4 marks) c. Find the seasonal index adjustment factor. (3 marks)

QUARTER	2017	2018	2019
1	54	59	63
2	55	59	65
3	56	60	67
4	55	60	69

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