Question: Briefly explain which type of statistical procedure (e.g., Pearson’s r, correlated samples t-test, chi-square test of association, etc.) one would use for each of the following situations.

(a) Mean scores in mathematics are compared for students using supplemental mathematics software and students who have not used this software.

(b) Is one’s level of satisfaction (measured on scale from 1 to 50) associated with one’s salary?

(c) Does a child’s decision to seek college admission (yes vs. no) differ depending upon whether that child’s mother attended college (yes vs. no)?

(d) On evaluation forms at college students are asked to rate their level of interest in a course before taking the course and again after completing the course. These ratings are obtained for a section of Chem. 2131—do these mean levels of interest differ before and after taking Chem. 2131 for this section of students?