We estimated regression equation for a model involving two independent variables and 10 observations follows. 33:29.4317 + 0.2573x1 + 0.704ng a. Interpret In and b) in this estimated regression equation {to 4 decimals). bl = 0 I y changes In! 0.2573 when x1 increas by 1 unit and x2 stays the same V I 9 a}: 0 I 3! changes by 0.7046 when x2 increas by 1 unit and x1 stays the same V I 9 b. Estimate y when 21 = 180 and z; = 310 (to 3 decimals). 6