2. [n a regression analysis involving 39 observations, the regression estimation equation is obtained as follows. y" = 115 + 33:1- 2.3.x1 + 1513 + 2.?1" a. 111th be, Eu. b3. b3. and In in the estimation of the regression equation above 13- Estimated 1value 3r when M = If}. x: = 5. x; =1. anon = 2