On Thu, 20 Apr 2000 terry <[EMAIL PROTECTED]> wrote:
> I am somewhat green when it comes to stats and these may be basic
> questions but here goes.
> I am trying to determine the correct sample size for a 1 sample t.
> The population is 8,000 and I realize the n>=30 rule,
> but what if this is
In article <[EMAIL PROTECTED]>,
[EMAIL PROTECTED] says...
> Does anybody know a site where there is documentation on Gauss on line
> like the one we can find on TSP ?
>
On my site
(http://faculty.washington.edu/ezivot/gaussfaq.htm)
I have links to several free gauss guides. ez
===
On Thu, 20 Apr 2000 10:48:38 +0100, "P.G.Hamer"
<[EMAIL PROTECTED]> wrote:
< snip, interesting stuff about, proper age-adjusted life-tables,
with proper adjustment of base-line Ns, would not show an increase in
competing causes of death >
> BTW an even greater problem in animal testing seems to
I am somewhat green when it comes to stats and these may be basic
questions but here goes.
I am trying to determine the correct sample size for a 1 sample t. The
population is 8,000 and I realize the n>=30 rule, but what if this is
descriptive stats with only two possibilites (y/n answer) Am I usi
You might want to check section 10.5 in Agresti, Categorical Data
Analysis, 1990, Wiley.
On Thu, 20 Apr 2000, Mats Carlsson wrote:
> Sorry if this has come up before, but
> here it goes.
>
> Is there a way I can compare
> kappa-values? The backgound is as
> follows:
> Four physicians has coded
One of my favorites is "Table Polishing" or "Median Polishing", discussed
in Tukey & Mosteller's "Green Book", Data Analysis and Regression.
David Cross
On Wed, 19 Apr 2000 [EMAIL PROTECTED] wrote:
> I am looking for a source of "portable staistics", i.e. techniques that
> are easy to remembe
In article <[EMAIL PROTECTED]>,
Mats Carlsson <[EMAIL PROTECTED]> wrote:
> Is there a way I can compare
> kappa-values? The backgound is as
> follows:
> Four physicians has coded a 100 surgical
> notes.
> Each physician has coded each surgical
> note using all four different
> classifications..
Dear Colleagues:
I am happy to announce that the GGUM2000 software
system is now available free of charge. The GGUM2000
system estimates parameters for a family of item response
theory models for unfolding. The most general model
implemented in the system is the generalized graded
unf
Does anybody know a site where there is documentation on Gauss on line
like the one we can find on TSP ?
===
This list is open to everyone. Occasionally, less thoughtful
people send inappropriate messages. Please DO NOT CO
since t = (M(1) - M(2)) / S*sqrt(1/n(1) + 1/n(2))
and d = (M(1) - M(2)) / S,
Doesn't that make d / sqrt(1/n(1) + 1/n(2)) = t ?
At 05:51 PM 4/19/00 -0400, you wrote:
>is there a standard error ... for an effect size?
>
>as an example ... say you were looking at differences between means betwee
On 19 Apr 2000 15:22:14 -0700, [EMAIL PROTECTED] (dennis roberts)
wrote:
> let's say that one designs a simple experiment about the effectiveness of a
> weight change program ...
>
> you set your sights on a power of .7 ... (beta therefore being .3) ...
> select a two tailed alpha of .05 ... b
dennis roberts wrote:
>
> what confidence do we have that the treatment effect is AT LEAST 3 lbs?
What Steve said, plus
You can't make a Bayesian omlette without breaking
some Bayesian eggs.
:)
===
This list is open to e
On Thu, 20 Apr 2000 09:55:13 +0200, Mats Carlsson <[EMAIL PROTECTED]>
wrote:
> Sorry if this has come up before, but
> here it goes.
I can't say the precise question has come up here, before -- What *is*
the precise question?
> Is there a way I can compare
> kappa-values? The backgound is as
W
I wrote:
> > As far as random samples are concerned: it is *very* rare for a true
> > random sample, based on an equal-probability sample of the population to
> > which the inference is intended to extend, to be taken
and Thom Baguley replied
> I don't think the problem is as severe as
Dennis Roberts writes:
>you set your sights on a power of .7 ... (beta therefore being .3) ...
>select a two tailed alpha of .05 ... because the situation is such that
>this program could actually make you gain weight though you hope that
>it will help you lose weight
>
>now, let's assume
I thought everone knew there was a difference in Anatomy between male
and female professors! ;)
At 12:19 PM 4/20/00 +0100, you wrote:
>dennis roberts wrote:
>>
>> At 10:32 AM 4/17/00 -0300, Robert Dawson wrote:
>>
>> > There's a chapter in J. Utts' mostly wonderful but flawed low-math
intro
Robert Dawson wrote:
> As far as random samples are concerned: it is *very* rare for a true
> random sample, based on an equal-probability sample of the population to
> which the inference is intended to extend, to be taken. Say a researcher is
> studying the behaviour of humans. (S)he may ta
Are you sure your version does not include EXAMINE?
[EMAIL PROTECTED] wrote:
> Hi,
>
> I'm a grad student in social science. My use of satistics software has
> been limited to SPSS because its simple user interface allowed me to
> easily do some simple non-parametric tests. But now, I am interes
dennis roberts wrote:
>
> At 10:32 AM 4/17/00 -0300, Robert Dawson wrote:
>
> > There's a chapter in J. Utts' mostly wonderful but flawed low-math intro
> >text "Seeing Through Statistics", in which she does much the same. She
> >presents a case study based on some of her own work in which s
C., Bayard, Paschall, III wrote:
> I am looking for a source of "portable staistics", i.e. techniques that
> are easy to remember and use, that can be applied without a calculator
> or software program or and do not need reference tables.
>
> Examples are: Tukey-Duckworth two sample test, and th
Jerry Dallal wrote:
> As Tukey has pointed out, the null hypothesis of no effect
> is not that we think there is no effect, but we are uncertain
> of the direction.
>
> I wish I knew more about Delany and its application.
> One problem, pointed out by David Salsburg, is that a
> substances that e
T.S. Lim wrote:
"Statisticians use S-Plus, not Matlab. Your life would be much easier if you
switch to S-Plus. There're so many useful functions written by top
Statisticians."
I think you forgot to include a derisive sniff in there somewhere. Some
statisticians use MATLAB, besides these langauge
Sorry if this has come up before, but
here it goes.
Is there a way I can compare
kappa-values? The backgound is as
follows:
Four physicians has coded a 100 surgical
notes.
Each physician has coded each surgical
note using all four different
classifications. (thus coning the same
note in four diff
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