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In a time series analysis, the multiplicative model is used to forecast sales and the following seasonal variations
Quarter 1 2 3 4
Seasonal variation 1.2 1.3 0.4 ?
The actual sales values for the first two quarters of 2006 were:
Quarter 1: $125,000
Quarter 2: $130,000
27.17 What is the seasonal variation for the fourth quarter?
i dont understand how to find this? please help:)
The seasonal variations using the multiplicative model must add up to 4. I do explain this in my free lectures.