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January 27, 2015

January 27, 2015

Posted by **vickie** on Monday, July 30, 2012 at 9:35am.

- statistics -
**MathGuru**, Monday, July 30, 2012 at 5:14pmFormula:

CI95 = mean ± 1.96(sd/√n)

Your data:

mean = 2.40

sd = 1.30

n = 20

Plug the values into the formula and calculate the interval.

I hope this will help get you started.

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