Confidence Interval Calculator For A Proportion
Confidence Interval Calculator For A Proportion: a planned Super Calculator tool. Stub page: the tool, its formula and a worked example are not published yet.
Confidence Interval Calculator For A Proportion is a planned calculator in the mathematics section of Super Calculator, covering statistics and probability.
What this calculator will compute
Inputs: successes x, sample size n, confidence level (%) and interval method.
Outputs: proportion, lower and upper bounds under each method and margin of error.
Formula, recorded as scope and not yet verified against a primary source: Wald interval phat plus or minus z * sqrt(phat(1-phat)/n) is the taught form and performs badly at extreme proportions. Wilson score and Agresti-Coull intervals have far better coverage; Clopper-Pearson is the exact but conservative option.
Status
This page is a stub. The calculator is not built, no figure on this page has been verified against the authority that sets it, and nothing here should be used to make a decision. The page exists so that the site structure is complete and so that articles can link this concept on first mention.
The stub carries noindex, nofollow and is excluded from the sitemap.