February 21, 2017

Homework Help: statistics

Posted by Gavin on Monday, January 21, 2013 at 12:53am.

Using the central limit theorem, construct a 95% confidence interval for the average total cry time for infants in the control group and infants in the intervention group. For this question only, assume that the standard deviation of cry time within each group is known and is equal to 22 seconds.

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