A 95% Confidence Interval for the True Mean Cholesterol Level

Multiple Choice

A 95% confidence interval for the true mean cholesterol level of adult males based on 25 randomly selected subjects extends from 175 mg/l to 250 mg/l. What is a proper interpretation of the confidence interval?

A) Ninety-five percent of the population has a cholesterol level between 175 and 250 mg/l.
B) We are 95% confident that the true mean cholesterol level of the population falls between 175 and 250 mg/l.
C) There is a 95% chance that a randomly selected individual has a cholesterol level that falls between 175 and 250 mg/l.
D) In repeated samples of size 25, the sample mean will fall between 175 and 250 mg/l 95% of the time.