For the following regression equation $\tilde { y } = 15 + 6 x _ { 1 } + 5 x _ { 2 } + 4 x _ { 1 } x _ { 2 }$ ,a unit increase in x₁ increases the value of y on average by: A) 5 B) 30 C) 26 D) an amount that depends on the value of x₂

Question

Quizplus · Accepted Answer

The increase in y due to a unit increase in x1 is 6 + 4x2, which depends on the value of x2.

For the Following Regression Equation y~=15+6x1+5x2+4x1x2\tilde { y } = 15 + 6 x _ { 1 } + 5 x _ { 2 } + 4 x _ { 1 } x _ { 2 }y~​=15+6x1​+5x2​+4x1​x2​

For the Following Regression Equation $\tilde { y } = 15 + 6 x _ { 1 } + 5 x _ { 2 } + 4 x _ { 1 } x _ { 2 }$