Tests for Differences between Several Small Proportions

D. A. Williams

Journal of the Royal Statistical Society Series C, 1988, vol. 37, issue 3, 421-434

Abstract: Motivated by the practical problem of analysing data from in vitro chromosome aberration assays this paper considers tests for differences between several proportions. Various test statistics are described, and the small sample behaviour of tests which refer these statistics to approximating continuous distributions is investigated. The inaccuracies of these approximate tests can be avoided by using the exact conditional distribution of the test statistic. The calculation of the exact significance probability is described and the computation costs are shown to be negligible compared with the costs of data acquisition. Finally the use of the mid‐p value is advocated for discretely distributed test statistics.

Date: 1988
References: Add references at CitEc
Citations: View citations in EconPapers (3)

Downloads: (external link)
https://doi.org/10.2307/2347316

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:bla:jorssc:v:37:y:1988:i:3:p:421-434

Ordering information: This journal article can be ordered from
http://ordering.onli ... 1111/(ISSN)1467-9876

Access Statistics for this article

Journal of the Royal Statistical Society Series C is currently edited by R. Chandler and P. W. F. Smith

More articles in Journal of the Royal Statistical Society Series C from Royal Statistical Society Contact information at EDIRC.
Bibliographic data for series maintained by Wiley Content Delivery ().