Stat Tools
Fast statistical calculators
Tools
Examples
Test Selector
Significance
t-test
ANOVA
Std Dev & Uncertainty
Confidence Interval
Sample Size
Multiple Testing
Effect Size
Outliers
Confidence interval
Compute a CI for a mean (t-based) or a proportion (Wilson).
Inputs
Mode
Mean (t-based)
Proportion (Wilson)
Tip: mean mode needs n, mean, sd. Proportion needs successes and n.
Confidence level
90%
95%
99%
Rounding
2 decimals
3 decimals
4 decimals
6 decimals
Mean inputs
n
mean
standard deviation (sd)
Proportion inputs
successes (x)
n
Compute CI
Result
Submit values to compute the interval.
