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Experimental design, data analysis, and statistical tooling for modern teams. No hype, just the math.

Kolmogorov-Smirnov Test
Goodness of FitJan 29New

Kolmogorov-Smirnov Test

The Kolmogorov-Smirnov Test compares a sample to a reference distribution or compares two samples to each other. Use it to test goodness-of-fit to any continuous distribution or to detect distribution drift.

Levene's Test
Goodness of FitJan 29New

Levene's Test

Levene's Test checks whether two or more groups have equal variances (homogeneity of variance). Use it to verify the equal-variance assumption before running ANOVA or t-tests.

Shapiro-Wilk Test
Goodness of FitJan 29New

Shapiro-Wilk Test

The Shapiro-Wilk Test evaluates whether a sample comes from a normally distributed population. Use it to check the normality assumption before running parametric tests like t-tests or ANOVA.