statistics-0.14.0.0: A library of statistical types, data, and functions

Statistics.Test.StudentT

Description

Student's T-test is for assesing whether two samples have different mean. This module contain several variations of T-test. It's a parametric tests and assumes that samples are normally distributed.

Synopsis

Documentation

Arguments

 :: Vector v Double => PositionTest one- or two-tailed test -> v Double Sample A -> v Double Sample B -> Maybe (Test StudentT)

Two-sample Student's t-test. It assumes that both samples are normally distributed and have same variance. Returns Nothing if sample sizes are not sufficient.

Arguments

 :: Vector v Double => PositionTest one- or two-tailed test -> v Double Sample A -> v Double Sample B -> Maybe (Test StudentT)

Two-sample Welch's t-test. It assumes that both samples are normally distributed but doesn't assume that they have same variance. Returns Nothing if sample sizes are not sufficient.

Arguments

 :: (Vector v (Double, Double), Vector v Double) => PositionTest one- or two-tailed test -> v (Double, Double) paired samples -> Maybe (Test StudentT)

Paired two-sample t-test. Two samples are paired in a within-subject design. Returns Nothing if sample size is not sufficient.