Consider the following data for a dependent variable y and two independent variables, x1 and x2 a. Develop an estimated regression equation relating y to x1. Estimate y if x1 = 45. b. Develop an...

Consider the following data for a dependent variable y and two independent variables, x1

and x2

a. Develop an estimated regression equation relating y to x1. Estimate y if x1 = 45.

b. Develop an estimated regression equation relating y to x2. Estimate y if x2 = 15.

c. Develop an estimated regression equation relating y to x1 and x2. Estimate y if x1 =45

and x2 = 15.