A least squares estimated regression line has been fitted to a set of data and the resulting residual plot is shown. Which is true?
A) The linear model is appropriate.
B) The linear model is poor because some residuals are large.
C) The linear model is poor because the correlation is near 0.
D) A curved model would be better.
E) A transformation of the data is required.

Question

A least squares estimated regression line has been fitted to a set of data and the resulting residual plot is shown. Which is true? 
A) The linear model is appropriate. 
B) The linear model is poor because some residuals are large. 
C) The linear model is poor because the correlation is near 0. 
D) A curved model would be better. 
E) A transformation of the data is required.

Quizplus · Accepted Answer

The Answer of A least squares estimated regression line has been fitted to a set of data and the resulting residual plot is shown. Which is true? 
A) The linear model is appropriate. 
B) The linear model is poor because some residuals are large. 
C) The linear model is poor because the correlation is near 0. 
D) A curved model would be better. 
E) A transformation of the data is required.

A Least Squares Estimated Regression Line Has Been Fitted to a Set