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December 20, 2014

December 20, 2014

Posted by **Asia** on Wednesday, February 13, 2013 at 1:08pm.

- statistics -
**JJ**, Wednesday, February 13, 2013 at 3:56pm95% confidence interval indicates that you have 5% outside the confidence interval and 2.5% on either side. This is an area of .025. You can use a calculator or a t-table to find the critical value.

Multiply that value times the standard deviation.

add this value to the mean and then subtract this value to the mean which will give you the confidence interval. Always write the confidence interval with the smaller value first.

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