An observation that has a strong effect on the regression results is called a(n) _____.
A) residual
B) sum of squares error
C) influential observation
D) None of the answers is correct.

Question

Quizplus · Accepted Answer

An influential observation is one that has a strong effect on the regression results, potentially changing the slope, intercept, or both. Residuals and sum of squares errors are measures of how well the regression line fits the data and are not necessarily individual observations that have a strong effect on the results.

An Observation That Has a Strong Effect on the Regression