If the plot of the residuals is fan shaped, which assumption is violated?
A) normality
B) homoscedasticity
C) independence of errors
D) No assumptions are violated, the graph should resemble a fan.

Question

Quizplus · Accepted Answer

Homoscedasticity assumes that the variance of the errors is constant across all levels of the independent variable. A fan-shaped plot of the residuals suggests that the variance of the errors is increasing or decreasing as the values of the independent variable increase.

If the Plot of the Residuals Is Fan Shaped, Which