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From |
Richard Williams <Richard.A.Williams.5@nd.edu> |

To |
statalist@hsphsun2.harvard.edu |

Subject |
Re: st: RE: Binomial confidence intervals (more) |

Date |
Thu, 09 Sep 2004 08:26:22 -0500 |

At 08:14 AM 9/9/2004 -0500, FEIVESON, ALAN H. (AL) (JSC-SK) (NASA) wrote:

I was wondering about that. So, is there also a raging controversy over whether some alternative to Fisher is superior, e.g. Yates correction for continuity? Like Nick Cox said in an earlier post, it sounds like "exact" is more of a propaganda term than an accurate description of the test. (Kind of like saying you've got the "best" product on the market.)All this discussion about failure of binomial confidence intervals to give "exact" coverage also applies to the Fisher "exact" test, whose actual level (probability of rejecting the null hypothesis of equal proportions, when in fact the proportions are equal) is usually less than the nominal level, depending on the true proprtions. In the frequentist setting, it's the same problem - there are only a finite number of possible outcomes. Al Feiveson

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**Follow-Ups**:**Re: st: RE: Binomial confidence intervals (more)***From:*Richard Goldstein <richgold@ix.netcom.com>

**Re: st: RE: Binomial confidence intervals (more)***From:*Marcello Pagano <pagano@hsph.harvard.edu>

**References**:**st: RE: Binomial confidence intervals (more)***From:*"FEIVESON, ALAN H. (AL) (JSC-SK) (NASA)" <alan.h.feiveson@nasa.gov>

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