| Date: | Wed, 9 Apr 2003 11:12:18 -0400 |
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| Reply-To: | Jay Weedon <jweedon@EARTHLINK.NET> |
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| Sender: | "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU> |
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| From: | Jay Weedon <jweedon@EARTHLINK.NET> |
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| Organization: | http://extra.newsguy.com |
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| Subject: | Re: test for proportions |
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| Content-Type: | text/plain; charset=us-ascii |
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On 9 Apr 03 00:13:56 GMT, ctsdias@CARPA.CIAGRI.USP.BR (Carlos Tadeu)
wrote:
>I am working in an assessorship in a problem of contingency table 5x10 and the researcher wants to know if there are difference among proportions inside a level of the first factor. I would like to know if there is a test for this in the SAS and where I can find references about. This sound like multiple comparison of proportions in a contingency table that has one row and 10 columns.
>
> A B C D E F G H I J K total
>M p1 p2 p3 p4 p5 p6 p7 p8 p9 p10 N
>
>Where pi=Ni/N, AND sum(Ni)=N
Generate one-way frequency tables and request the chi-square test,
e.g.,
proc freq;
tables column /chisq;
by row;
run;
This will generate (separately for each row) a chi-square
goodness-of-fit test of the null hypothesis that the row proportions
are all equal.
JW
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