sorry it does not work anymore
Statistics Dept. Nat. Bk. Belgium [EMAIL PROTECTED] wrote in message
6XMs4.4$[EMAIL PROTECTED]">news:6XMs4.4$[EMAIL PROTECTED]...
http://home.clara.net/johnes/neural.for
===
This
How do I calculate pooled standard deviation? I have
study with group of exercisers following forward over
time. I want look at weight by category of calorie
intake. I look at standard deviation for weight for
each calorie group but want one overall standard
deviation. Is this valid? Thank
Radford Neal wrote:
Finally, I doubt very much that the "C" language stands for "computer".
What would it's predecessor language, called "B", have stood for?
Radford Neal
Believe it or not, "Basic". And the "C", for "Combined". (In my
search,
I also found alternatives "Bon" or
Anna:
I have done this before trying to get an estimate of effect size
[(mean1-mean2) / s], and the standard deviations for the groups differed. I did
it by getting the pooled variance first (formulas in most stat books) and
squared rooted it. But this was for only two groups, and all I
William Chambers wrote:
Gus,
You are making a defense of studying distributions as they are thrown at us
by nature/circumstances, This seem the way to go to social scientists
because we tend to believe that our causes are embedded in all sorts of
complex interactions and can not be
Aha. Thank you. This explains the mystery a year ago when graduate
students in my nonparametric course were simulating the power of
various tests under different alternatives. On the department's
SPARC 10 with recently installed S-Plus 5.1, they were waiting
"minutes" for output even
Gus said:
Here is how I interpret what you've said to date:
1. If you take two uniformly distributed random variables x1 and x2 and
form
the sum y = x1 + x2, then y has a distribution that is not uniform.
2. If you have two variables x and y and want to determine whether x
depends
on y or
Hi,
I am looking for information on a short course in introductory
statistics and statistical modeling, primarily intended for business
executives. The course should ideally be web based, however
information on similar courses offered in more traditional setting
would be useful too.
I would
Hello: I'm preparing for a basic College Stats exam and need help
locating sites that will explain some basic concepts in a BASIC fashion:
Looking for:
Normal Probability: Areas under the bell curve: when to add .5,
subtract.5 add the areas, etc. using Z-Table 7 Z = X - mean/ Std dev.
Basic and
First, I would like to say thank you for the responses that I got to my
question about computing. Secondly, I have a question about the topic of
biostatistics, which perhaps someone can answer as well. Specifically, how
extensive does one's background in science have to be, in order to be
Programmed a solution in Statistica Basic that transforms the raw data
into the proper form for the "Logit" tool: codes and [frequency]
counts. Then, used the Logit tool to fit a curve to the data
using "maximum likelyhood" prediction method. Looked at the 2D
function plot and it looked
I have found that a course in medical terminology has been the most helpful background
outside of the traditional statistics and biostatistics courses. When I got my
biostats masters, a course in medical terminology was required. Working in a
hospital, I find that course is still a lifesaver
Dear readers of edstat and sci.stat.edu,
I apologize for sending yet another message about the administration of
the list; I hope this is the last. As you know, we have had a problem
with complaints to the NC State postmaster about occasional spam
messages on the list. For a week, we tried
Hi thereperusing an article in the most recent issue of JASA and a
reference was made to gamma regression...I consulted quite a few of my
regression/linear statistical modelling texts, but nary a reference to
gamma regression...can some one be kind enough to provide a brief
description
On Tue, 22 Feb 2000 16:33:16 GMT, [EMAIL PROTECTED] wrote:
snip, a bunch of stuff I am not going to mention
... Also, I'm just now reading up on discrete
random variables and the various distributions associated with them.
It mentions the cumulative probability function
In article 001c01bf7e40$c2ea3980$7d01a8c0@daleglas,
[EMAIL PROTECTED] says...
Hi thereperusing an article in the most recent issue of JASA and a
reference was made to gamma regression...I consulted quite a few of my
regression/linear statistical modelling texts, but nary a reference to
Guss said:
No. You said yourself that you are _selecting_ the x1 and x2 to be
uniform.
Yes, we do this so that we will have examples of all combinations of x1 and
x2,as we would do when using a factorial anova design. But such uniform
sampling does not make the variables into causes, Adding
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