Confidence Interval Calculator

Use this Calculator of trust intervals to easily calculate the trusting boundaries for statistics with one sample or for differences between two proportions or medium values ​​(two independent samples). Unilateral and bilateral intervals, as well as trust intervals for a relative difference (percentage difference) are supported. If you are interested in the IC from one group, then to calculate the trust interval you need to know the sample size, the standard sampling deviation and the arithmetic mean sample.