An Administrator in Charge of Residential Life Services Recently Conducted

Multiple Choice

An administrator in charge of residential life services recently conducted a survey of undergraduate college students at a small university. A random sample of 300 students was selected from each class level (freshman, sophomore, junior, or senior) . Each student was asked to complete and return a short questionnaire on the quality of campus residences. Some students returned the questionnaire; some did not. This is summarized in the table below. Which of the following conclusions seems to be supported by the data?

A) Juniors and seniors appear to be more likely to return the survey than freshmen and sophomores.
B) Juniors and seniors are happier with the quality of campus residences than freshman and sophomores.
C) Students who did not return the questionnaire are unhappy with the quality of campus residences.
D) The percent of students returning the questionnaire is the same for each class.