Fisher's exact test (also Fisher-Irwin test) is a statistical significance test used in the analysis of contingency tables. Although in practice it is...

An exact (significance) test is a statistical test such that if the null hypothesis is true, then all assumptions made during the derivation of the distribution...

random variables and is a uniformly more powerful alternative to Fisher's exact test. It was proposed in 1970 by R. D. Boschloo. A 2 × 2 contingency table...

tables with smaller sample sizes, a Fisher's exact test is used instead. In the standard applications of this test, the observations are classified into mutually...

samples. The test is developed as an exact test that allows for unequal sample sizes and unequal variances of two populations. The exact property still...

frequencies is not rejected. Fisher's exact test can be applied to testing for Hardy–Weinberg proportions. Since the test is conditional on the allele frequencies...

shown both the exact binomial test and the McNemar test with continuity correction to be overly conservative. When b + c < 6, the exact-P-value always...

A permutation test (also called re-randomization test or shuffle test) is an exact statistical hypothesis test. A permutation test involves two or more...

test is an exact test used in the analysis of 2 × 2 contingency tables with one margin fixed. Barnard’s tests are really a class of hypothesis tests,...

distributions such as a click-through rate one would use Fisher's exact test. A/B tests most commonly apply the same variant (e.g., user interface element)...

PMC 3900058. PMID 23894860. Warner, Pamela (1 October 2013). "Testing association with Fisher's Exact test". Journal of Family Planning and Reproductive Health...

either the binomial test or, for contingency tables, Fisher's exact test. This test uses the conditional distribution of the test statistic given the...

Binomial test is an exact test of the statistical significance of deviations from a theoretically expected distribution of observations into two categories...

Grotenhuis (2017) provide an exact test for pairwise comparison of Friedman rank sums, implemented in R. The Eisinga c.s. exact test offers a substantial improvement...

(hypergeometric test) is identical to the corresponding one-tailed version of Fisher's exact test. Reciprocally, the p-value of a two-sided Fisher's exact test can...

are preferable to the G-test. McDonald recommends to always use an exact test (exact test of goodness-of-fit, Fisher's exact test) if the total sample size...

Exact statistics, such as that described in exact test, is a branch of statistics that was developed to provide more accurate results pertaining to statistical...

serving as a middle ground between uncorrected chi-squared tests and Fisher's exact test. The correction was first published by Frank Yates in 1934....

the nominal level. Exact test A statistical hypothesis test compares a test statistic (z or t for examples) to a threshold. The test statistic (the formula...

DNA test for colorectal cancer. Since then Exact Sciences has grown its product portfolio to encompass other screening and precision oncological tests for...

powerful unbiased (UMPU) permutation test for Type I censored data, an exact test for comparing variances, and an exact test for cross-over designs. The A to...

The 2025–2027 ICC World Test Championship will be the fourth edition of the ICC World Test Championship. It will be played in Test format. It will start...

Wonderlic Test Iq test Trust metric Ames test Chi-squared test Draize test Dixon's Q test F-test Fisher's exact test GRIM test Kolmogorov–Smirnov test Kuiper's...

resources is required to compute exact probabilities for the Kruskal–Wallis test. Existing software only provides exact probabilities for sample sizes of...

The Wilcoxon signed-rank test is a non-parametric rank test for statistical hypothesis testing used either to test the location of a population based...

less likely than that observed, if the null hypothesis is true. Using an exact test, this is calculated as   p [ s i g ] = ∑ y : P ⁡ ( y ) ≤ P ⁡ ( x ) 0 P...

unpaired data include Pearson's chi-squared test and Fisher's exact test. Paired difference test Variance reduction Gosall, Narinder Kaur Gosall, Gurpal Singh...

created using the least squares method, the resulting F-tests are often called "exact" F-tests. The F-statistic was developed by Ronald Fisher in the 1920s...

sample size, and it is preferable to use Fisher's exact test. Ramsey shows that the exact binomial test is always more powerful than the normal approximation...

homoskedasticity across break points for finite samples; however, an exact test with the sup-Wald statistic may be obtained for a linear regression model...