Power of a test
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The statistical power of a binary hypothesis test is the probability that the test correctly rejects the null hypothesis (
Power (statistics) - Wikipedia Jump to content From Wikipedia, the free encyclopedia (Redirected from Power of a test ) Term in statistical hypothesis testing In frequentist statistics , power is the probability of detecting an effect (i.e. rejecting the null hypothesis) given that some prespecified effect actually exists using a given test in a given context. In typical use, it is a function of the specific test that is used (including the choice of test statistic and significance level ), the sample size (more data tends to provide more power), and the effect size (effects or correlations th
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