Because 25 percent of the students in my morning statistics class watch eight or more hours of television a week, I conclude that 25 percent of all students at the university watch eight or more hours of television a week. The most important logical weakness of this conclusion would be:
A)relying on any sample instead of surveying every student.
B)using a sample that may not be representative of all students.
C)failing to correct for unconscious interviewer bias.
D)assuming cause and effect where none exists.

Question

Quizplus · Accepted Answer

The conclusion is based on a sample from a single statistics class, which may not be representative of all students in the university. Therefore, generalizing the result to the entire population based on this sample is not valid.

Because 25 Percent of the Students in My Morning Statistics