1. SUBEDI CALCULATORS
Confidence Interval for Proportionsnew window
Calculate confidence interval (CI) for proportion for both one or two sample cases. CI is given in ± notation. Margin of Error is also shown.
2. LibreTEXT CALCULATORS
Enter sample size, n, the number of successes, x, and the confidence level, CL (in decimal). Press calculte to reveal the lower and upper bounds of the confidence interval. ONE SAMPLE case only.
Screenshot of the calculator