Mathematics, 10.09.2019 18:10, itscheesycheedar

Aregression model is used to forecast sales based on advertising dollars spent. the regression line is y=500+35x and the coefficient of determination is .90. which is the best statement about this forecasting model? a. for every $35 spent on advertising, sales increase by $1.
b. even if no money is spent on advertising, the company realizes $35 of sales.
c. the correlation between sales and advertising is positive.
d. the coefficient of correlation between sales and advertising is 0.81.

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Aregression model is used to forecast sales based on advertising dollars spent. the regression line...