Skip to main content
Statistics LibreTexts

25: Confidence Interval For Proportions Calculator

  • Page ID
  • 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.

    n:   \(x\):   CL:   Lower Bound Upper Bound \(\hat{p}\)

    Back to the Calculator Menu