In a multiple regression the following sample regression equ
In a multiple regression, the following sample regression equation is obtained
y-hat = 153 + 12.8x1 + 2.7x2
a Predict y if x1 equals 32 and x2 equals 49
y-hat
b
Interpret the slope coefficient of x1
| In a multiple regression, the following sample regression equation is obtained y-hat = 153 + 12.8x1 + 2.7x2 a Predict y if x1 equals 32 and x2 equals 49 y-hat b
|
Solution
a) y-hat = 153 + 12.8*32 + 2.7*49 = 694.9
b)
| As x1 increases by one unit, y is predicted to increase by 12.8 units, holding x2 constant. |
