ÃÂ Interpretation of Regression Results Brodie CompanyÃ¢â¬â¢s advertising manager wants to know whether the companyÃ¢â¬â¢s advertising program is successful. The manager used a spread sheet program to estimate the relation between advertising expenditures (the independent variable) and sales dollars. Monthly data for the past two years were entered into the program. The regression results indicated the following relation:ÃÂ Sales dollarsÃÂ $169,000ÃÂ ($200ÃÂ Advertising expenditures) Correlation coefÃ¯Â¬ÂcientÃÂ .864ÃÂ ÃÂ these results seemed to imply that advertising was reducing sales. The manager was about toÃÂ conclude that statistical methods were so much nonsense when you walked into the room.
ÃÂ Help the manager. What might cause the negative relationship between advertising expenditures and sales?ÃÂ ÃÂ
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