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December 20, 2014

December 20, 2014

Posted by **Sally** on Monday, August 15, 2011 at 10:59pm.

- statistics -
**MathGuru**, Tuesday, August 16, 2011 at 10:38amFormula:

CI95 = mean + or - 1.96(sd/√n)

sd = standard deviation

n = sample size

Substitute the values from your problem into the formula and calculate.

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