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| A division uses a regression in which monthly advertising expenditures are used to predict monthly product sales (both in millions of dollars). The results show a regression coefficient for the independent variable equal to sales=800,000+0.8*advertising expenditures. This coefficient value indicates that A. The average monthly advertising expenditure in the sample is $800,000. B. When monthly advertising is at its average level, product sales will be $800,000. C. On average, for every additional dollar in advertising you get $0.80 in additional sales. D. Advertising is not a good predictor of sales because the coefficient is so small. |