Stat-Test

This crate provides statistical tests and relevant utilities.

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Status

Currently a number of tests are implemented for comparing the means of two independent samples, and for checking assumptions regarding the former tests. However, these tests are all two-sample tests that do not yet support specifying alternative hypotheses.

Comparison of independent means

• Student's t-test
  stattest::test::StudentsTTest
  Assumptions: normality, homogeneity of variances

• Welch's t-test
  stattest::test::WelchsTTest
  Assumptions: normality

• Mann-Whitney U-test/Wilcoxon rank-sum test
  stattest::test::MannWhitneyUTest
  Assumptions: –

Comparison of paired observations

• Student's t-test
  stattest::test::StudentsTTest
  Assumptions: normality, homogeneity of variances

• Wilcoxon signed rank test
  stattest::test::WilcoxonWTest
  Assumptions: –

Assumption tests

• Levene's test
  stattest::test::LevenesTest
  Tests: homogeneity of variances

• F-test of equality of variances
  stattest::test::FTest
  Tests: homogeneity of variances

• Shapiro-Wilk test
  stattest::test::ShapiroWilkTest
  Tests: normality