微信扫一扫
实时资讯全掌握
Consider the following regression equation:
Salesi = 20.5 + 1.5 R&Di + 2.5 ADVi – 3.0 COMPi where Sales is dollar sales in millions, R&D is research and development expenditures in millions, ADV is dollar amount spent on advertising in millions, and COMP is the number of competitors in the industry.Which of the following is NOT a correct interpretation of this regression information? A. If a company spends $1 more on R&D (holding everything else constant), sales are expected to increase by $1.5 million. B. One more competitor will mean $3 million less in sales (holding everything else constant). C. If R&D and advertising expenditures are $1 million each and there are 5 competitors, expected sales are $9.5 million. |