Question: silve plz .... Problem 15 Given the following sales data, if there is no trend in the data a. What are the average seasonality factors
silve plz ....

Problem 15 Given the following sales data, if there is no trend in the data a. What are the average seasonality factors for Q1, Q2, Q3 and Q4? b. Do these seasonality factors need to be normalized? Why? Year Quarter Sales 1 1 20 25 3 35 4 44
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