The regression equation below has been developed to predict…
The regression equation below has been developed to predict sales at a store. In this equation, y = sales (in $1000s), X1 = competitor’s previous day’s sales (in $1,000s), X2 = population within 1 mile (in 1,000s), and X3 = 1 if radio advertising was used and 0 if no radio advertising was used.