Below is the plot of residuals versus fitted values for this regression model. Based on the plot, which assumption/condition is definitely violated?
A) Equal Variance
B) Linearity
C) Normality
D) Independence
E) Randomization

Question

Below is the plot of residuals versus fitted values for this regression model.  Based on the plot, which assumption/condition is definitely violated?
A) Equal Variance 
B) Linearity 
C) Normality 
D) Independence 
E) Randomization

Quizplus · Accepted Answer

The plot shows a clear pattern, indicating that the variance of the residuals is not constant over the range of the fitted values. This violates the assumption of equal variance, also known as homoscedasticity.

Below Is the Plot of Residuals Versus Fitted Values for This