Which estimated multiple regression has nonlinearity tests?
A) $\hat { y } = - 92 - 5 x _ { 1 } + 6 x _ { 1 } ^ { 2 } + 18 x _ { 2 } - 12 x _ { 2 } ^ { 2 }$
B) $\hat { y } = 47 - 18 x _ { 1 } - 3 x _ { 2 } + 6 x _ { 3 } + 36 x _ { 4 }$ .
C) $\hat { y } = 88 + 11 x _ { 1 } + 7 x _ { 1 } x _ { 2 } + 5 x _ { 2 }$

Question

Quizplus · Accepted Answer

The presence of squared terms ($x_1^2$ and $x_2^2$) in the regression equation indicates a test for nonlinearity.

Which Estimated Multiple Regression Has Nonlinearity Tests? A) y^=−92−5x1+6x12+18x2−12x22\hat { y } = - 92 - 5 x _ { 1 } + 6 x _ { 1 } ^ { 2 } + 18 x _ { 2 } - 12 x _ { 2 } ^ { 2 }y^​=−92−5x1​+6x12​+18x2​−12x22​

Which Estimated Multiple Regression Has Nonlinearity Tests?
A) $\hat { y } = - 92 - 5 x _ { 1 } + 6 x _ { 1 } ^ { 2 } + 18 x _ { 2 } - 12 x _ { 2 } ^ { 2 }$