Great explanation!!!!
"dennis roberts" <[EMAIL PROTECTED]> wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> At 02:16 AM 9/29/01 +0000, John Jackson wrote:
>
> >For any random inverval selected, there is a .05% probability that the
> >sample will NOT yield an interval that yields the parameter being
estimated
> >and additonally such interval will not include any values in area
> >represented by the left tail. Can you make different statements about
the
> >left and right tail?
>
> unless CIs work differently than i think ... about 1/2 the time the CI
will
> miss to the right ... and 1/2 the time they will miss to the left ...
thus,
> what if we labelled EACH CI with a tag called HIT ... or MISSleft ... or
> MISSright ... for 95% CIs ... the p of grabbing a CI that is HIT from all
> possible is about .95 ... the p for getting MISSleft PLUS MISSright is
> about .05 ... thus, about 1/2 of the .05 will be MISSleft and about 1/2 of
> the .05 will be MISSright
>
> so, i don't see that you can say anything differentially important about
> one end or the other
>
>
>
>
> >"Michael F." <[EMAIL PROTECTED]> wrote in message
> >[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> > > (Warren) wrote in message:
> > >
> > > > So, what is your best way to explain a CI? How do you explain it
> > > > without using some esoteric discussion of probability?
> > >
> > > I prefer to focus on the reliability of the estimate and say it is:
> > >
> > > "A range of values for an estimate that reflect its unreliability and
> > > which contain the parameter of interest 95% of the time in the long
run."
> >
> >
> >
> >
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> ==============================================================
> dennis roberts, penn state university
> educational psychology, 8148632401
> http://roberts.ed.psu.edu/users/droberts/drober~1.htm
>
>
>
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