Management Proposed the following progression model to predi
     Management Proposed the following progression model to predict sales at a fast-food outlet.  Y = beta1 + beta1X1 + beta2X2 + beta3X3 + epsilon  X1 = number of competitors within one mile  X2 = population within one mile(1000s)  X3 = (1 if drive-up window present 0 otherwise)  Y = sales(1000s)  The following estimated progression equation was developed after 20 cutlets were surveyed.  Y = 10.1 - 4.2X1 + 6.8X2 + 15.3X3  What is the executed amount of sales attributable to the drive-up window?  Predict sales for a store with two competitors, a population of 8000 within one mile, and no drive-up window.  Predict sales for a store with one competitor, a population of 3000 within one mile, and a drive-up window. 
  
  Solution

