Math & Numbers
Analyze two categorical factors and their interaction with a two-way ANOVA table
two-way-anova-calculatorMath & Numbers
Run a paired nonparametric Wilcoxon signed-rank test from paired samples or differences
wilcoxon-signed-rank-calculatorMath & Numbers
Run a one-proportion Z test from success count, trial count, and hypothesized population proportion
one-proportion-z-test-calculatorMath & Numbers
Compare two independent proportions with a pooled two-proportion Z test and confidence interval
two-proportion-z-test-calculatorMath & Numbers
Run paired-sample t tests from before and after values or precomputed paired differences
paired-t-test-calculatorMath & Numbers
Run an independent two-sample t test with pooled variance from raw data or summary statistics
two-sample-t-test-calculatorMath & Numbers
Run Welch two-sample t tests for independent groups with unequal variances from raw data or summary statistics
welch-t-test-calculatorMath & Numbers
Run one-sample Z tests for a mean with known population standard deviation or a single population proportion
z-test-calculatorMath & Numbers
Calculate Cohen d, Hedges g, Cohen h for proportions, or correlation r effect sizes from summary statistics
effect-size-calculatorMath & Numbers
Run a one-sample t test from raw data or summary statistics, including p-value and confidence interval
one-sample-t-test-calculatorMath & Numbers
Estimate statistical power for one-sample mean or proportion tests using sample size, alpha, and expected effect
statistical-power-calculatorMath & Numbers
Calculate F distribution density, cumulative probability, and right-tail probability from numerator and denominator degrees of freedom
f-distribution-calculator