Module t_tests 

t-tests — one-sample, paired, and two-sample (pooled + Welch). Real Student-t p-values and t-based confidence intervals.

Structs

TTest

One-sample / paired t-test result (integer degrees of freedom). Copy.

TwoSampleTTest

Two-sample t-test result (degrees of freedom may be fractional, for Welch).

Functions

one_sample_t

One-sample t-test of the sample mean against mu. None if n < 2.

paired_t

Paired t-test: the one-sample t-test of the paired differences against 0. None if the samples differ in length or n < 2.

two_sample_t

Two-sample t-test of mean(a) − mean(b) = 0.