A Sociologist Studying Freshmen Carried Out a Survey, Asking (Among

Multiple Choice

A sociologist studying freshmen carried out a survey, asking (among other questions) how often students went out per week, how many hours they studied per day, and how many hours they slept at night. The table below provides the answers on the time slept and the time spent studying. Did students who studied 3 or more hours sleep less?

A) Yes, because if someone studies more they have less time to sleep.
B) No, because students who study more party less.
C) Yes, because the proportion of students who slept at most 8 hours among those studying 3 hours or more is 0.73, while the proportion who slept at most 8 hours among those studying less than 3 hours is 0.769.
D) There is not enough information to answer this question.