Dr. Carrier wants to know if college students’ preferences for early morning classes and late afternoon classes are equal. He collects data from 100 students and his observed frequencies are as follows: 30 say they prefer early morning classes and 70 say they prefer late afternoon classes. What test should he use to determine if there is a preference for class time?
a. Spearman rank-order correlation
b. paired samples t test
c. chi-square goodness-of-fit
d. Mann-Whitney U test
Ans: C
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