What can be concluded from the following plots a The relatio

What can be concluded from the following plots?

a) The relationship between x and y is not linear.

b) The standard deviation of the response in not constant.

c) The response is not normally distributed about the mean function.

d) None of the above.

Normal P-P Plot of Regression Stanc Scatterplot Dependent Variable: Y1 SCATTER PLOT Dependent Variable: Y1 71 Ooserved Cum Frob Regression Standardized Predicted Value

Solution

(C) is correct because the residual plot (in middle) shows a curvature, and it should have resembled straight line if errors were from normal distribution.