Proposed Columna API: categorical inference, binomial proportions, variance inference. Domain validation and interval metadata are part of the statistical library, not the UI. Pearson/Yates chi-square, Fisher 2x2, Clopper–Pearson/Wilson/Newcombe, normal-theory chi-square/F variance inference, Bonett (one sample), Levene/Bartlett.
Optional
Proposed Columna API: categorical inference, binomial proportions, variance inference. Domain validation and interval metadata are part of the statistical library, not the UI. Pearson/Yates chi-square, Fisher 2x2, Clopper–Pearson/Wilson/Newcombe, normal-theory chi-square/F variance inference, Bonett (one sample), Levene/Bartlett.