Professor Mary Mancini Studied Class Level and Drinking Behaviour at Rocky

question 9

Multiple Choice

Professor Mary Mancini studied class level and drinking behaviour at Rocky Mountain University in Red Deer,Alberta.At Rocky Mountain,every student is required to live in one of six 20-story dormitories,and every student has a single room.All dormitory room phone numbers begin with the prefix 747 or 757 .She used the student telephone directory and,after a random start,selected every fifteenth student.She then mailed a questionnaire to the 1000 students selected and had two follow-up postcard reminders.A total of 900 students returned questionnaires.Later,Professor Mancini asked the university registrar's office whether any students were omitted from the directory. What is Mary Mancini's sampling frame?

• A)The drinking behaviour of students
• B)Students both in the directory and not in the directory
• C)The student telephone directory
• D)Rocky Mountain University
• E)The class levels