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Mathematics 9 Online
OpenStudy (anonymous):

A random sample of 125 students is chosen from a population of 4,000 students. If the mean IQ in the sample is 100 with a standard deviation of 8, what is the 98% confidence interval for the students' mean IQ score?

OpenStudy (anonymous):

100−120 98.33−101.67 92−108 108.66−111.34

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