There are four independent variables, $x _ { 1 } , x _ { 2 } , x _ { 3 }$, and $x _ { 4 }$, that might be useful in predicting a response $y$. A total of $n = 40$ observations is available, and it is decided to employ stepwise regression to help in selecting the independent variables that appear to useful. The computer fits all possible one-variable models of the form $E ( y ) = \beta _ { 0 } + \beta _ { 1 } x _ { i } , i = 1,2,3,4$. The information in the table is provided from the computer printout.

Which independent variable is declared the best one-variable predictor of $y$ ?
A) $x _ { 1 }$
B) $x _ { 2 }$
C) $x _ { 3 }$
D) $x _ { 4 }$

Question

There are four independent variables, $x _ { 1 } , x _ { 2 } , x _ { 3 }$, and $x _ { 4 }$, that might be useful in predicting a response $y$. A total of $n = 40$ observations is available, and it is decided to employ stepwise regression to help in selecting the independent variables that appear to useful. The computer fits all possible one-variable models of the form $E ( y ) = \beta _ { 0 } + \beta _ { 1 } x _ { i } , i = 1,2,3,4$. The information in the table is provided from the computer printout.

Which independent variable is declared the best one-variable predictor of $y$ ?
A) $x _ { 1 }$ 
B) $x _ { 2 }$ 
C) $x _ { 3 }$ 
D) $x _ { 4 }$

Quizplus · Accepted Answer

The Answer of There are four independent variables, $x _ { 1 } , x _ { 2 } , x _ { 3 }$, and $x _ { 4 }$, that might be useful in predicting a response $y$. A total of $n = 40$ observations is available, and it is decided to employ stepwise regression to help in selecting the independent variables that appear to useful. The computer fits all possible one-variable models of the form $E ( y ) = \beta _ { 0 } + \beta _ { 1 } x _ { i } , i = 1,2,3,4$. The information in the table is provided from the computer printout.

Which independent variable is declared the best one-variable predictor of $y$ ?
A) $x _ { 1 }$ 
B) $x _ { 2 }$ 
C) $x _ { 3 }$ 
D) $x _ { 4 }$

There Are Four Independent Variables x1,x2,x3x _ { 1 } , x _ { 2 } , x _ { 3 }x1​,x2​,x3​

There Are Four Independent Variables $x _ { 1 } , x _ { 2 } , x _ { 3 }$