In exercise 1, the following estimated regression equation based on 10 observations was presented. = XXXXXXXXXX x 1 + .4980 x 2 a. Develop a point estimate of the mean value of y when x 1 = 180 and x...

In exercise 1, the following estimated regression equation based on 10 observations was presented.

      = 29.1270 + .5906x
₁ + .4980x
₂

a. Develop a point estimate of the mean value ofywhenx
₁ = 180 andx
₂ = 310.

b. Develop a point estimate for an individual value ofywhenx
₁ = 180 andx
₂ = 310.