Statement of a problem № m742


Quick-print firms in a large downtown business area spend most of their advertising dollars on displays on bus benches. A research project involves predicting monthly sales based on the annual amount spent on placing ads on bus benches. A sample of quick-print firms revealed these advertising expenses and sales:  a. Draw a scatter diagram. b. Determine the correlation coefficient. c. What is the coefficient of determination? d. Compute the regression equation. e. Estimate the monthly sales of a quick-print firm that spends $4,500 on bus bench advertisements. f. Summarize yourfindings.

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