I have one binomial variable associated to two (or more) groups. Which is the best test for identifying proportion differences?

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Subrata Chakraborty

Kindly elaborate the question a little more. May be test for equality of proportion

Carlos Jimenez-Gallardo

Oscar,

Brown, Cai and Dasgupta, they propose to work with confidence intervals for small samples. I attached publication

Oscar Oviedo-Trespalacios

Thanks!

Jos Feys

The most obvious test seems to be a chi-square test of independence between rows and columns in a contingency table. Allen Edwards (Experimental design in psychological research, 1985) argued that one can perform a simple ANOVA upon binomial data.

Online tool:

http://www.socscistatistics.com/tests/chisquare/

James Renwick Beattie

binomial test seems good for it. After reading the page linked below click on 'go to procedure' to get to online calculator

http://www.quantitativeskills.com/sisa/distributions/binohlp.htm