|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>|
|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)
>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,
tables column /chisq;
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.