The 'party line' is to take the first 30 or so points, calculate
limits, throw out any outside ones & add more at the end, until you
have 30 points, all of which are inside the control limits. For both
X-bar and R, if you are doing this sort of chart.
Based on (approximate) probabilities, there
Niko Tiliopoulos wrote:
>
> Hello everybody,
>
> Has anybody heard of the Bell-Doksum test?
IIRC it's like a Wilcoxon 2-sample test, except that the ranks are
transformed to normal scores. If that's the right test, it has ARE 1 vs
the t-test (it has good power for small deviations), but as you
Title: DVD Copy Utility
Copy &
Burn DVD and VHS with CD Burner
Also Playstation2
& dreamcast !!!
Why
Spend upwards of $4000 on a DVD Burner when you could buy a software that
will do the exact s
Ronny Richardson wrote:
>
> Can anyone tell me how to produce a chart of the chi-square distribution in
> Excel? (I know how to find chi-square values but not how to turn those into
> a chart of the chi-square curve.)
>
> Ronny Richardson
>
>
Can anyone tell me how to produce a chart of the chi-square distribution in
Excel? (I know how to find chi-square values but not how to turn those into
a chart of the chi-square curve.)
Ronny Richardson
=
Instructions for joining
If I read your problem correctly, an experiment is not really being
conducted. Rather, it is a static group comparison which is
essentially a pre-experimental design. The pollutants, fish, and
rivers are not "manipulated" by the researcher. The manipulation of
independent variables is the sine
Hi
On 20 Feb 2002, Voltolini wrote:
> I was reading a definition of "experiment" in science to be used in a
> lecture and the use of treatments and controls are an important feature of
> an experiment but my doubt is... is it possible to plan an experiment
> without a control and call this a
"Rich Ulrich" <[EMAIL PROTECTED]> wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> On Wed, 20 Feb 2002 19:30:19 -, "Chia C Chong"
> <[EMAIL PROTECTED]> wrote:
>
> >
> > "Vadim and Oxana Marmer" <[EMAIL PROTECTED]> wrote in message
> > [EMAIL PROTECTED]">news:[EMAIL PROTECTED]..
Linda <[EMAIL PROTECTED]> wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> Hi!
>
> I have some experimental data collected and can be grouped into 2
> variables, X and Y. One is the dependent variable (Y) and the other is
> an independent variable (X). What test shall I made to che
[EMAIL PROTECTED] (The Truth) wrote:
> I suppose I should have been more clear with my question. What I
> essentially require is a textbook which presents algorithms like Monte
> Carlo, Principal Component Analysis, Clustering methods,
> MANOVA/MANACOVA methods etc. and provides source code (in C
Voltolini wrote:
>
> Hi,
>
> I was reading a definition of "experiment" in science to be used in a
> lecture and the use of treatments and controls are an important feature of
> an experiment but my doubt is... is it possible to plan an experiment
> without a control and call this as an "
Voltolini wrote:
>
> Hi,
>
> I was reading a definition of "experiment" in science to be used in a
> lecture and the use of treatments and controls are an important feature of
> an experiment but my doubt is... is it possible to plan an experiment
> without a control and call this as an "
I think also that an experiment is the human attempt to make sense
out of the chaotic world:
the method is you assume chaos, H0 and then disprove it..
so you don't need controls because the experiment can be run to
prove maybe that the equation for velocity is valid..
(validation experiment).. (
On Wed, 20 Feb 2002 19:30:19 -, "Chia C Chong"
<[EMAIL PROTECTED]> wrote:
>
> "Vadim and Oxana Marmer" <[EMAIL PROTECTED]> wrote in message
> [EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> > You can start with checking if they are correlated. It's simpler to do. If
> > you find that they are
> My tentative conclusion is that your 2% effect really
> is a small one; it should be difficult to discern among
> likely artifacts; and therefore, it is hardly worth mentioning
I agree to me it makes sense as well: fasting insulin should have more
to do with error and genetics than food
"Vadim and Oxana Marmer" <[EMAIL PROTECTED]> wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> You can start with checking if they are correlated. It's simpler to do. If
> you find that they are correlated then you have the answer to your
> question.
> If you find that they are unco
On 20 Feb 2002 08:50:19 -0800, [EMAIL PROTECTED] (MrTequila)
wrote:
> Hi all, hope this is the right place.
>
> i was just wondering what you should do when you establish some
> control limits but some of the data points you've just used are
> outside of the limits you just established?
>
> sh
[EMAIL PROTECTED] (Holger Boehm) wrote in message
news:<[EMAIL PROTECTED]>...
> Hi,
>
> I have calculated correlation coefficients between sets of parameters
> (A) and (B) and beween (A) and (C).
> Now I would like to determine the correlation between (A) and (B
> combined with C). How can I com
the real question is, 'how much accuracy (precision, variance) is
suitable?'
If you were to repeat the simulation run (i.e., a test) a total of n
times, then you could say that the true mean elapsed time was x-bar +/-
(certain amount), with say 95% confidence.
That is, if you were to then repeat
You can start with checking if they are correlated. It's simpler to do. If
you find that they are correlated then you have the answer to your
question.
If you find that they are uncorrelated and you have a reason to believe
that they may be not independent anyway then you can look for more
advance
At 03:59 PM 2/20/02 -0300, Voltolini wrote:
>Hi,
>
>I was reading a definition of "experiment" in science to be used in a
>lecture and the use of treatments and controls are an important feature of
>an experiment but my doubt is... is it possible to plan an experiment
>without a control and c
Hi,
I was reading a definition of "experiment" in science to be used in a
lecture and the use of treatments and controls are an important feature of
an experiment but my doubt is... is it possible to plan an experiment
without a control and call this as an "experiment" ?
For example, in a p
Hi all, hope this is the right place.
i was just wondering what you should do when you establish some
control limits but some of the data points you've just used are
outside of the limits you just established?
should you write them off as bad, leave them or go back and see/fix
the problem?
any
?? It is well known. Haven't you checked the
Combined Index to Statistics, or even looked in
The Encyclopedia of Statistical Sciences?
Niko Tiliopoulos wrote:
>
> Hello everybody,
>
> Has anybody heard of the Bell-Doksum test? If so could you please give
> me a reference or a short descriptiio
Hi!
I have some experimental data collected and can be grouped into 2
variables, X and Y. One is the dependent variable (Y) and the other is
an independent variable (X). What test shall I made to check whether
there can be expressed as independent or not??
Thanks..
Linda
=
Next question:
How much does Rasch analysis depend upon the evaluators being ignorant
that the method will be used?
In other words, can
(A) one Rasch-aware judge
(B) a minority of Rasch-aware judges
(C) a majority of Rasch-aware judges (but not the whole
Hello everybody,
Has anybody heard of the Bell-Doksum test? If so could you please give
me a reference or a short descriptiion of it. Some one mentioned it to
me and it's driving me crazy not to be able to find any info either on
the net or in my references.
Best
Niko Tiliopoulos
well, one simple way would be to add B and C ... then correlate with A
if these are radically different scales, convert to z scores first
At 02:05 AM 2/20/02 -0800, Holger Boehm wrote:
>Hi,
>
>I have calculated correlation coefficients between sets of parameters
>(A) and (B) and beween (A) and
Herman Rubin wrote:
>
> > ExpVar = -ln(UnifVar);
>
> It is not a good method in the tails, and is much too slow.
If I recall correctly, transcendental operations on a Pentium require
only a couple hundred clock cycles and can usually be optimized to take
place during other calc
Ian Buckner <[EMAIL PROTECTED]> wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> The Box-Muller algorithm rejects roughly 22.5% of the
> generated points. I'm not aware of any bound on the number
> of consecutive rejections, other than a statistical one, hence
> my statement. I wou
Ian Buckner <[EMAIL PROTECTED]> wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> The Box-Muller algorithm rejects roughly 22.5% of the
> generated points. I'm not aware of any bound on the number
> of consecutive rejections, other than a statistical one, hence
> my statement. I wou
I do not think this will satisfy on its own but it seems a good
starting point. SPSS has up on its web pages the statistical
algorithms for many of its procedures:
http://www.spss.com/tech/stat/algorithms.htm
As these are not the computer algorithmns (at least I hope not) I
think you will ne
Hi,
I am writing a computer simulation, and I really would appreciate some
advice about statistics side of things!
Each simulation run has fixed settings, but there is some randomness
involved (e.g. start position). As a result, each simulation scenario
needs to be run until the universal mean (
Hi,
I am writing a computer simulation, and I really would appreciate some
advice about statistics side of things!
Each simulation run has fixed settings, but there is some randomness
involved (e.g. start position). As a result, each simulation scenario
needs to be run until the universal mean (
Hi,
I have calculated correlation coefficients between sets of parameters
(A) and (B) and beween (A) and (C).
Now I would like to determine the correlation between (A) and (B
combined with C). How can I combine the two parameters (B) and (C),
what kind of statistical method has to be applied?
Th
The Box-Muller algorithm rejects roughly 22.5% of the
generated points. I'm not aware of any bound on the number
of consecutive rejections, other than a statistical one, hence
my statement. I would welcome correction if this is not the case.
Regards
Ian
"Radford Neal" <[EMAIL PROTECTED]> wro
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