Homework Help: statistics

Posted by Anonymous on Monday, July 2, 2012 at 7:48pm.

9) A 95% confidence interval for the true mean cholesterol of adult males based on 25 randomly selected subjects extends from 175 mg/L to 250 mg/L. A proper interpretation of the confidence interval would be that:

A) 95% 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) None of the above

statistics - PsyDAG, Tuesday, July 3, 2012 at 11:07am
B
statistics - annette, Saturday, July 7, 2012 at 12:52pm
man cholesterol is 175mg/dl , standard deviation 20mg/dl..approximate normal distribution..what percentage has cholesterol above 155mg/dl? thanks..

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