Chapter 6.1, Problem 34E

To determine

To comment: On the regression model using the $s$ , $r^2$ and the residual plot.

Explanation of Solution

Given:

The output is:

  

The residual plot is:

  

From the provided output, the value of the s is 12.55. It shows that the prediction error is around 12.55.

The coefficient of determination shows the variation that is explained by the predictor variable on the response variable. Here, coefficient of determination is 55.8%

Thus, it shows that that the 55.8% of the variation on the response variable is explained by the least square line

From the provided plot, no particular pattern is being followed. Thus, it could be said that the provided model is a good fit.