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Statistics LibreTexts

20: Sample Size for a Mean Calculator

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  • Sample size Calculator 

    Fill in the population standard deviation (\(\sigma\)), the error bound (E), and the confidence level (CL).  Write the confidence level as a decimal.  For example, for a 95% confidence level, enter 0.95  for CL.  Then hit Calculate and assuming the population is normally distributed, the necessary sample size will be shown.

    \(\sigma\):   E:   CL:   n:
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