NTotal in proc GLMPOWER

Celine_France — Mon, 28 Dec 2009 10:13:42 GMT

Hi everybody,

In a proc GLMPOWER, I would like to know if the Ntotal obtained in the contrast corresponds to the global sample size or only the number of comparaisons needed for this contrast.

Here is an example to understand :
http://support.sas.com/documentation/cdl/en/statug/63033/HTML/default/statug_glmpower_sect010.htm

For the comparaison between LZ1 and LZ2 in LacticAcid1, the number 222 corresponds to the global sample size or to the number of comparaisons needed ?
=> If it is the first case, 37 measures of LZ1 and 37 measures of LZ2 are needed (222/6=37 : 74 for water because of weight=2).
=> If it is the second case, 222 measures of LZ1 and 222 measures of LZ2 are needed.

By advance, thanks a lot for your answers,

Céline

Re: NTotal in proc GLMPOWER

MisterFred — Wed, 31 Mar 2010 10:36:14 GMT

Bonjour Céline,

Hi Celine,

N is the global sample size.

Regards

topic Re: NTotal in proc GLMPOWER in Statistical Procedures

NTotal in proc GLMPOWER

Re: NTotal in proc GLMPOWER