Sigma says...

Guess the standard deviation of a sample.

What's the z?

Guess the z-score of a data point relative to a sample.

Effective d-tective

Guess the effect size (Cohen's d of the difference between two samples.

Sample shuffle

See the means dancing!

Confidence Can-Can

See the confidence intervals dancing!

CI Explorer

Examine how confidence intervals change!

CI Private Eye

Guess the confidence interval for a sample.

One-Sample t-Test Visualizer

Test single samples against a constant population mean.

Independent-Samples t-Test Visualizer

Compare two samples against the assumption of no difference in means.

One-Way ANOVA Visualizer

Compare up to six samples against the assumption of no difference in means.

Calculate One-Way ANOVA Effect Sizes

Calculate effect sizes for One-Way ANOVA using F and degrees of freedom.

Correlation Station

Shift and remove data points to see how scatterplot shapes influence correlation.

Correlation CI Explorer

Examine how confidence intervals for correlations change!

2x2 Chi-Squared Explorer

Change the counts, change the world.

Cellular Migration

Drag counts between cells, while maintaining row and column totals to shift the chi-squared.