Which statement about influential points is true?
I. Removal of an influential point changes the regression line.
II. A high leverage point is always influential.
III. Influential points have large residuals.
A) I only
B) I and II
C) I and III
D) II and III
E) I, II and III

Question

Quizplus · Accepted Answer

An influential point is one whose removal significantly changes the regression line, which is true for statement I. However, a high leverage point is not always influential, and influential points do not necessarily have large residuals, making statements II and III false.

Which Statement About Influential Points Is True