tion (range equals 200 to 800).College student sampled 500 students and determined the sample mean   was 580 and the sample standard deviation was 60.

A student in college woutd like the upper limit of a twosided 80% confidence   interval for S.A.T College Exam scores on the Math portion/section (range equals 200 to 800).College student sampled 500 students and determined the sample mean   was 580 and the sample standard deviation was 60.