Which of the following items does not ap...

题目

Which of the following items does not apply to the sum of squared residuals (SSR) from an ordinary least square (OLS) regression?

选项

A.SSR is equal to ∑ e_i²

B.SSR is equal to ∑ [Y_i-(b₀+b₁X_i)]

C.When using OLS, SSR is minimized.

D.SSR can indicate how well the regression model explains the dependent variable.

答案

B

解析

All of the expressions apply to the sum of squared residuals except for choice b. The expression in choice b should be squared.除选择B以外，所有表达式都适用于残差平方和。 在选项B中的表达应被平方。