A researcher found that a 98% confidence interval for the mean hours per week spent studying by
College students was (13, 17). Which is true?
I. There is a 98% chance that the mean hours per week spent studying by college students is
Between 13 and 17 hours.
II. 98% of college students study between 13 and 17 hours a week.
III. Students average between 13 and 17 hours per week studying on 98% of the weeks.
A) III only
B) I and III
C) none of these
D) II only
E) I only

Question

Quizplus · Accepted Answer

A confidence interval provides a range within which we are 98% confident the true population mean lies, not the probability of the mean being in that range. It also doesn't imply that 98% of students or weeks fall within that range.

A Researcher Found That a 98% Confidence Interval for the Mean