Of a random sample of 142 admissions counselors on college campuses 39 indicated that, on average, they spent 15 minutes or less studying each rsum Test the null hypothesis that at most 20 of all admissions counselors spend this small amount of time studying rsums ...

Of a random sample of 142 admissions counselors on college campuses 39 indicated that, on average, they

Question:

Of a random sample of 142 admissions counselors on college campuses 39 indicated that, on average, they spent 15 minutes or less studying each résumé. Test the null hypothesis that at most 20% of all admissions counselors spend this small amount of time studying résumés.