exchangeability

Example 7.16: assess robustness of permutation test to violations of exchangeability assumption

October 24, 2009 | Nick Horton

Permutation tests (section 2.4.3) are a form of resampling based inference that can be used to compare two groups. A simple univariate two-group permutation test requires that the group labels for the observations are exchangeable under the null hypothesis of equal distributions, but allows relaxation of specific distributional assumptions required by ...
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