[R] Inferences for ratios of non-normal means

[JRG]

On 11 Sep 2007 at 22:10, Robert A LaBudde wrote:

> I think a ratio of two normals has a Cauchy distribution, which 
> doesn't have a variance (the singularity in the denominator), so the 
> Central Limit theorem does not apply.
> 

The Cauchy results if the denominator normal distribution has mean = 0, but noth otherwise.





> I would suggest using bootstrap resampling to make inferences.
> 
> At 08:10 PM 9/11/2007, Moshe wrote:
> >For large samples you have asymptotic normality!
> >
> >--- Paul Smith <phhs80 at gmail.com> wrote:
> >
> > > Dear All,
> > >
> > > The package mratios can perform inferences for
> > > ratios of normal means.
> > > Is there some other package to do the same but with
> > > non-normal
> > > populations. Since I have got large samples, an
> > > asymptotic procedure
> > > would be fine.
> > >
> > > Thanks in advance,
> > >
> > > Paul
> > >
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> > >
> >
> >______________________________________________
> >R-help at r-project.org mailing list
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> 
> ================================================================
> Robert A. LaBudde, PhD, PAS, Dpl. ACAFS  e-mail: ral at lcfltd.com
> Least Cost Formulations, Ltd.            URL: http://lcfltd.com/
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> 
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> and provide commented, minimal, self-contained, reproducible code.


John R. Gleason

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