Jerry Dallal <[EMAIL PROTECTED]> wrote in sci.stat.edu:
>"Robert J. MacG. Dawson" wrote:
>
>> > > But I don't see why either the advertiser or the consumer advocate
>> > would, or should, do a two-tailed test.
>>
>> The idea is that the "product" of these tests is a p-value to be used
>>
Does P(A*B|C)=P(A|C)*P(B|A*C)? If not, what does it equal? Thanks in
advance.
-Matt
=
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I think that phrase has created much
misunderstanding. I try to convince my students that correlation is
necessary but not sufficient for establishing a causal
relationship.
Karl L. Wuensch, Department of
Psychology,East Carolina University, Greenville NC
27858-4353Voice: 252-328-4102
Gen random numbers from distribution
I need to generate random numbers from a Beta and a Gamma distribution. In
both cases the mean and standard deviation are known.
I do not have a statistics package but intend to write a program to accomplish
this and perform necessary calculations.
Is this
Rich Ulrich wrote:
>
> On 2 Dec 2001 16:49:25 -0800, [EMAIL PROTECTED] (Kevin C. Heslin)
> wrote:
>
> > Jenny -- here's a way to impute continuous variables using SAS:
> >
> > Regression analysis is performed on a continuous variable until significant
> > predictors of the continuous variable ar
Please bring this announcement to the attention of anyone potentially
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I'm sorry for any cross-posting.
Thanks for your consideration
I apologize if this has been asked before, because I just subscribed
to this newsgroup.
I use Wayne Daniel's book, "Biostatistics: A Foundation for Analysis
in the Health Sciences," as a text in an introductory course in
Biostatistics for first year graduate students in Public Health.
Is anyone
Hi.
After fitting a linear regression model I need to do an extremely
simple thing - plot the regression function along with the original
data. Splus has a simple way to plot quite a few complex plots and
a very complicated way to do this simple one !
Is there a simple way to plot the regress
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On 2 Dec 2001 16:49:25 -0800, [EMAIL PROTECTED] (Kevin C. Heslin)
wrote:
> Jenny -- here's a way to impute continuous variables using SAS:
>
> Regression analysis is performed on a continuous variable until significant
> predictors of the continuous variable are identified. The parameter estima
"Robert J. MacG. Dawson" wrote:
> > > But I don't see why either the advertiser or the consumer advocate
> > would, or should, do a two-tailed test.
>
> The idea is that the "product" of these tests is a p-value to be used
> in support of an argument. The evidence for the proposal is not
On Sun, 02 Dec 2001 19:19:38 -0500, Rich Ulrich <[EMAIL PROTECTED]>
wrote:
>With the curve, and low, low averages, you do notice
>that a single *good* performance can outweigh several
>poor ones. So that is good.
>
It is good, but conversely having several "high" scores even with low,
low ave
Stan Brown wrote:
I see why the quality controller would want to
> do a two-tailed test: the product should not be outside
> manufacturing parameters in either direction. (Presumably the QC
> person would be testing the pills themselves, not patients taking
> the pills.)
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