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

Mood's Median Test: Comparing Medians Without Distributional Assumptions
Two-Group ComparisonsJan 29New

Mood's Median Test: Comparing Medians Without Distributional Assumptions

Mood's median test compares medians across two or more groups with minimal assumptions. Learn when it beats Mann-Whitney, its limitations, and better alternatives.

Permutation Tests: Distribution-Free Inference for Any Statistic
Two-Group ComparisonsJan 29New

Permutation Tests: Distribution-Free Inference for Any Statistic

Permutation tests make no distributional assumptions and work with any test statistic. Learn when they beat parametric tests, how they work, and practical implementation tips.