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Neyman-Pearson lemma

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A lemma asserting that in the problem of statistically testing a simple hypothesis $H_0$ against a simple alternative $H_1$ the likelihood-ratio test is a most-powerful test among all statistical tests having one and the same given significance level. It was proved by J. Neyman and E.S. Pearson [1]. It is often called the fundamental lemma of mathematical statistics. See also Statistical hypotheses, verification of.

References

[1] J. Neyman, E.S. Pearson, "On the problem of the most efficient tests of statistical hypotheses" Philos. Trans. Roy. Soc. London Ser. A. , 231 (1933) pp. 289–337
[2] E.L. Lehmann, "Statistical hypotheses testing" , Wiley (1978)
How to Cite This Entry:
Neyman-Pearson lemma. Encyclopedia of Mathematics. URL: http://encyclopediaofmath.org/index.php?title=Neyman-Pearson_lemma&oldid=53124
This article was adapted from an original article by M.S. Nikulin (originator), which appeared in Encyclopedia of Mathematics - ISBN 1402006098. See original article