14.22 The article “Impacts of On-Campus and Off-Campus Work on First-Year Cognitive Outcomes” (Journal of College Student Development [1994]: 364–370) reported on a study in which y 5 spring math comprehension score was regressed against x1 5 previous fall test score, x2 5 previous fall academic motivation, x3 5 age, x4 5 number of credit hours, x5 5 residence

(1 if on campus, 0 otherwise), x6 5 hours worked on campus, and x7 5 hours worked off campus.

The sample size was n 5 210, and R2 5 .543.

Test to see whether there is a useful linear relationship between y and at least one of the predictors.