We have been developing models for SAT mathscores for two different clusters of states

Chapter 0, Problem 28.20

(choose chapter or problem)

We have been developing models for SAT mathscores for two different clusters of states. Use the SAT data to evaluate similarmodels for SAT verbal scores. The file eq 28-11.dat contains the data.(a) Find the least-squares line for predicting SAT verbal scores from percenttaking the exam.(b) Plot SAT verbal score versus percent taking the exam, and add theleast-squares line to your plot.(c) Are you happy with the fit of your model? Comment on the value of R2 andthe residual plots.(d) Fit a model with two regression lines. Identify the two lines, parameterestimates, t statistics, and corresponding P-values. Does this model improve thefit?(e) Specify and fit the model suggested by the inferences for the model inpart (d). Identify the two lines, parameter estimates, t statistics, andcorresponding P-values. Are you happy with the fit of this model? Explain.