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Which of the following statements are not correct? The coefficient of determinat

ID: 3178811 • Letter: W

Question

Which of the following statements are not correct?

The coefficient of determination, denoted by r^2 is interpreted as the proportion of observed y variation that cannot be explained by the simple linear regression model.

The higher the value of the coefficient of determination, the more successful is the simple linear regression model in explaining y variation.

If the coefficient of determination is small, an analyst will usually want to search for an alternative model (either a nonlinear model or a multiple regression model that involves more than a single independent variable).

The coefficient of determination can assume any value between 0 and 1, inclusive.

All of the above statements are correct.


a.

The coefficient of determination, denoted by r^2 is interpreted as the proportion of observed y variation that cannot be explained by the simple linear regression model.

b.

The higher the value of the coefficient of determination, the more successful is the simple linear regression model in explaining y variation.

c.

If the coefficient of determination is small, an analyst will usually want to search for an alternative model (either a nonlinear model or a multiple regression model that involves more than a single independent variable).

d.

The coefficient of determination can assume any value between 0 and 1, inclusive.

e.

All of the above statements are correct.

Explanation / Answer

The coeffient of correlation is given by R square and It is interpreted as the proportion of the variance in the dependent variable that is predictable from the independent variable.

This value ranges from 0 to 1. Higher the value of R square means the dependent variable can be predicted without error from the independent variable.

Hence answer is E) All of the above statements are correct

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