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Re: st: R: Shapiro's


From   MIGUEL ANGEL GRUPO DE INVESTIGACIO ODONT SIMANCAS PALLARES <msimancasp@unicartagena.edu.co>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: R: Shapiro's
Date   Mon, 3 Dec 2012 14:31:43 -0500

Thanks Carlo and Nick.

I did it and now i can conclude that is better with non-parametric statistics.
Kind regards,

On Mon, Dec 3, 2012 at 1:55 PM, Carlo Lazzaro
<carlo.lazzaro@tiscalinet.it> wrote:
> Miguel may want to visually inspect his data to make up his mind about their
> distribution and/or take a look at:
>  - help qnorm -;
> - help pnorm -.
>
> Kind Regards,
> Carlo
> -----Messaggio originale-----
> Da: owner-statalist@hsphsun2.harvard.edu
> [mailto:owner-statalist@hsphsun2.harvard.edu] Per conto di MIGUEL ANGEL
> GRUPO DE INVESTIGACIO ODONT SIMANCAS PALLARES
> Inviato: lunedì 3 dicembre 2012 19:16
> A: statalist@hsphsun2.harvard.edu
> Oggetto: st: Shapiro's
>
> Hi. Im using Stata.
>
> Im trying to conduct several analysis including t test and ANOVA. When i try
> to perform normality analysis using shapiro wilk test it say that the data
> is not normally distributed. But, when i perform shapiro francia test (with
> the same data) it says that the are normally distributed...
>
> Which of these results should I use (Wilk or Francia)?
>
> Thanks in advance,
>
> --
>
> Miguel Angel Simancas. OD. MSc (C).
> GITOUC - GITOUC Research Group
> Departamento de Investigación - Research Department Facultad de Odontología
> - Faculty of Dentistry Universidad de Cartagena - University of Cartagena
> Tel: +57 (5) 6698172. Ext: 110.
>
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-- 
Cordial Saludo,

Miguel Angel Simancas. OD. MSc (C).
GITOUC - GITOUC Research Group
Departamento de Investigación - Research Department
Facultad de Odontología - Faculty of Dentistry
Universidad de Cartagena - University of Cartagena
Tel: +57 (5) 6698172. Ext: 110.

*
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*   http://www.ats.ucla.edu/stat/stata/


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