Question: Problem 2 (Note use sheet called Sales+) Given sales projections (quarterly) for 4 straight years and the advertising costs for the same periods. Compute a
Problem 2 (Note use sheet called Sales+) Given sales projections (quarterly) for 4 straight years and the advertising costs for the same periods. Compute a linear regression model and determine if is a good model/fit. Support your determination using available good fit testing.

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