Three independent random samples of community college students were obtained to find out how many hours the students spent each week doing math homework outside of the classroom. The samples were made up of students enrolled in pre-algebra (PreAlg), elementary algebra (ElemAlg), and intermediate algebra (InterAlg).
Use three two-sample t-tests, applying the appropriate Bonferroni Correction to achieve an overall significance level of 0.05, to compare all possible pairs of means. Assume the conditions for two-sample t-tests are met. See page 572 for guidance and data.