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25: Confidence Interval For Proportions Calculator

25: Confidence Interval For Proportions Calculator

Last updated

Dec 20, 2023
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- 24: Confidence Interval Calculator for a Population Mean (With Data, Sigma Unknown)
- 26: Needed Sample Size for a Confidence Interval for a Population Proportion Calculator

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CONFIDENCE INTERVAL for proportions Calculator

Fill in the sample size (n), the number of successes ( $x$ ), 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 $np$ and $nq$ are large enough, the correct confidence interval will be calculated for you.

$x$ :

CL:

Lower Bound

Upper Bound

$\hat{p}$

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