Ask your own question, for FREE!
Mathematics 12 Online
OpenStudy (anonymous):

PRE-CALC HELP! In a random sample of 1,000 exams, the average score was 500 points with a standard deviation of 80 points. Find the interval about the sample mean that has 1% level of confidence. a. 499-501 b.479-520 c. 495-505 d. 493-507

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!