=+31. SAT scores. How strong was the association between student scores on the Math and Verbal sections of the old SAT? Scores on this exam ranged from 200 to 800 and were widely used by college admissions offices. Here are summary statistics, regression analysis, and plots of the scores for a graduating class of 162 students at Ithaca High School, where the response variable is Math Score.

Predictor Coeff SE(Coeff) t-Ratio P-Value Intercept 209.55 34.35 6.10 60.0001 Verbal 0.675 0.057 11.88 60.0001 s = 71.75 R-Sq = 46.9%

800 700 600 500 400 Math 400 500 600 700 800 Verbal 200 100 0

–100 Residuals 450 525 600 675 Predicted