Each Person in a Random Sample of 54 Students Living

Multiple Choice

Each person in a random sample of 54 students living in the dorms at a large university was asked whether he or she preferred to study in the dorm room, in the dorm's study lounge, or at the university library. The resulting data is summarized in the table below. In a hypothesis test to determine if there is evidence that the three locations are not equally preferred by students at the university who live in the dorms, what is the expected count for the library category?

A) 10
B) 12
C) 18
D) 54
E) 20