Ask your own question, for FREE!
Mathematics 13 Online
OpenStudy (anonymous):

Help!! In a random sample of 1000 exams, the average score was 500 points with a standard deviation of 80 points. Find the interval about the sample mean that has a 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!