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October 21, 2014

October 21, 2014

Posted by **John Davis** on Saturday, December 11, 2010 at 9:58pm.

- statistics -
**MathGuru**, Saturday, December 11, 2010 at 11:22pmFormula:

n = [(z-value) * sd/E]^2

...where n = sample size, z-value will be 2.575 using a z-table to represent 99% confidence, sd = .6, E = .1, ^2 means squared, and * means to multiply.

Plug the values into the formula and finish the calculation. Round your answer to the next highest whole number.

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