If a data point is influential it……
A) is guaranteed to be extreme in the horizontal direction.
B) none of these
C) is guaranteed to be extreme in the vertical direction.
D) has a small residual.
E) will change the slope of the regression equation.

Question

Quizplus · Accepted Answer

An influential data point is one that, when removed, significantly changes the slope of the regression equation. This means it has a substantial impact on the model's parameters, unlike points with small residuals or those that are merely extreme in one direction without influencing the model's fit.

If a Data Point Is Influential It……