February 19, 2017

Homework Help: statistics

Posted by Haywood on Friday, July 1, 2011 at 5:22pm.

A school psychologist is trying to determine the lower boundary of a confidence interval for a IQ measure that has a mean of 100 and a standard deviation of 30 and a sample size of 100. What is the lower boundary if she was to create a 95% confidence interval?

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