Statalist The Stata Listserver


[Date Prev][Date Next][Thread Prev][Thread Next][Date index][Thread index]

st: Samspi non normality?


From   "Di Stefano, Paola" <paola.di.stefano@medtronic.com>
To   <statalist-digest@hsphsun2.harvard.edu>
Subject   st: Samspi non normality?
Date   Fri, 10 Nov 2006 17:47:17 +0100

Dear all,

I'm trying to estimate a sample size for two-sample comparison of means
using the command sampsi.
The study is to test for a difference in effectiveness of 0.5 between
two groups, assuming a sd(1.4)
Is there any way to change the normality assumption? Is there another
way to estimate sample size?
 
Thanks
Paola






*
*   For searches and help try:
*   http://www.stata.com/support/faqs/res/findit.html
*   http://www.stata.com/support/statalist/faq
*   http://www.ats.ucla.edu/stat/stata/



© Copyright 1996–2014 StataCorp LP   |   Terms of use   |   Privacy   |   Contact us   |   What's new   |   Site index