Question: When estimating the sales of a firm as a function of its advertising expenditures using the model Sales = Î²0 + Î²1Advertising + , an

When estimating the sales of a firm as a function of its advertising expenditures using the model Sales = Î²0 + Î²1Advertising + , an analyst obtains the following ANOVA results:

a. What proportion of the variability in sales is explained by advertising expenditures?
b. What proportion of the variability in sales is unexplained by advertisingexpenditures?

ANOVA df SS Regression199.93199.9387.802.41E-08 Residual 40.99 2.28 Total MS F Significance F 19 240.92

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