Below is the plot of residuals versus fitted values for this regression model. Which assumption appears to be violated?
A) Equal Variance
B) Linearity
C) Normality
D) Independence
E) None; all appear to be satisfied.

Question

Below is the plot of residuals versus fitted values for this regression model.  Which assumption appears to be violated?
A) Equal Variance 
B) Linearity 
C) Normality 
D) Independence 
E) None; all appear to be satisfied.

Quizplus · Accepted Answer

The plot of residuals versus fitted values shows a clear pattern of increasing variance as the fitted values increase. This violates the assumption of equal variance (also known as homoscedasticity).

Below Is the Plot of Residuals Versus Fitted Values for This