References

SWS builds its math from first principles and anchors both methods and numerical correctness to public, citable canon.

Methods

• NIST/SEMATECH e-Handbook of Statistical Methods — the reference for confidence intervals, the Student-t and normal distributions, and proportion estimation.

Numerical correctness

• NIST Statistical Reference Datasets (StRD) — certified values used to verify accuracy. The build's self-test checks the descriptive-statistics core against the NumAcc1 dataset (certified mean 10000003, certified sample SD exactly 2).

See the live verification on the Software & sources page.