Statement of a problem № m41182


Consider the data in Table P-3 where X = weekly advertising expenditures and Y = weekly sales. a. Does a significant relationship exist between advertising expenditures and sales? b. State the prediction equation. c. Forecast sales for an advertising expenditure of $50. d. What percentage of the variation in sales can be explained with the prediction equation? e. State the amount of unexplained variation. f. State the amount of total variation.

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