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April 20, 2014

Homework Help: math

Posted by Tracy on Wednesday, June 26, 2013 at 5:07pm.

Find the 95% confidence interval for the difference between two means based on this information about two samples. Assume independent samples from normal populations. (Use conservative degrees of freedom.) (Give your answers correct to two decimal places.)

Sample Number Mean Std. Dev.
1 27 39 21
2 16 26 35

Lower Limit
Upper Limit

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