Poindexter examined the relationship between ratio scores measuring the quality of sneakers worn by volleyball players and their average number of points scored per game. Studying 10 people who owned sneakers of good to excellent quality, he computed r = + .21. Without further ado, he immediately claimed to have support for the notion that better-quality sneakers are related to better performance on a somewhat consistent basis. He then computed r2 and the regression equation. Do you agree or disagree with his approach? Why?