question archive If the plot of the residuals is fan shaped, which assumption of regression analysis (if any) is violated? Select one: a
If the plot of the residuals is fan shaped, which assumption of regression analysis (if any) is violated? Select one: a
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If the plot of the residuals is fan shaped, which assumption of regression analysis (if any) is violated?
Select one:
a. Independence of errors
b. Linearity
c. Normality
d. No assumptions are violated
e. Equal error variance (Homoscedasticity)
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Answer:
e. Equal error variance (Homoscedasticity)
equal variance assumption means that the variance of errors is constant, but fan shaped plot shows that y-values are more scattered towards one direction, i.e, variance is not constant.
