Confidence Interval for a Proportion (Wilson)
Confidence Interval for a Proportion (Wilson) - a deterministic tool in Sophie Well's Clinical Math & Conversions group.
Open the Confidence Interval for a Proportion (Wilson) → Runs in your browser. No signup, no tracking.
What this is
Confidence Interval for a Proportion (Wilson) is one of 230 deterministic tools in Sophie Well's Clinical Math & Conversions group. Confidence Interval for a Proportion (Wilson) - a deterministic tool in Sophie Well's Clinical Math & Conversions group.
When to use it
Use this tool when you need a quick, citable reference. Every calculation runs entirely in your browser - no inputs leave your device, no account is required, no AI is involved. The site enforces a strict Content Security Policy and ships no analytics or third-party CDN.
References
Wilson EB. Probable inference, the law of succession, and statistical inference. J Am Stat Assoc. 1927;22(158):209-212. Read the source ↗
Worked example: Proportion 80% (95% CI 49–94.3%).
Sophie Well is a reference and educational tool. Not medical, legal, or financial advice. Does not replace clinician judgment, professional billing review, or legal counsel.