Date:         Wed, 9 Apr 2003 11:12:18 -0400
Reply-To:     Jay Weedon <jweedon@EARTHLINK.NET>
Sender:       "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>
From:         Jay Weedon <jweedon@EARTHLINK.NET>
Organization: http://extra.newsguy.com
Subject:      Re: test  for proportions
Content-Type: text/plain; charset=us-ascii

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