|Date: ||Tue, 2 Feb 2010 12:57:46 -0500|
|Reply-To: ||Peter Flom <email@example.com>|
|Sender: ||"SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>|
|From: ||Peter Flom <peterflomconsulting@MINDSPRING.COM>|
|Subject: ||Re: what statistical analysis or model I need to use when the
median and mean are extremly different?|
|Content-Type: ||text/plain; charset=UTF-8|
Marianne Kang <tongjunkang@HOTMAIL.COM> wrote
>Hope someone can give me some idea. I have a data with dependent variable
>is continuous but not normally distributed. The median is only around 60,
>but the mean as high as 22000,what statistical analysis or model I need to
>use when the median and mean are extremly different?
OK, you haven't told us what you are trying to do. I'll assume that you want some kind of regression model.
Why are the mean and median so different? What is this DV? What are the IVs?
Regular (ordinary least squares) regression does NOT require that the DV be normal, it assumes things about the residuals. Have you looked at these?
But, more importantly, what's your scientific question of interest?
Peter L. Flom, PhD
Website: http://www DOT statisticalanalysisconsulting DOT com/