Statistika For Life: 23 new messages in 11 topics

sci.stat.math
http://groups.google.com/group/sci.stat.math?hl=en

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Today's topics:

==============================================================================
TOPIC: Turn a uniform number to normal random numbers
http://groups.google.com/group/sci.stat.math/browse_thread/thread/054d911605199f7c?hl=en
==============================================================================

== 1 of 6 ==
Date: Wed, Nov 14 2007 11:05 am
From: "Luis A. Afonso"

The EXACT method to get a pair of INDEPENDENT Normal (mean, sigma) Values (X1, X2) from Uniform pair (RND1, RND2) is:

U = SQR ( -2 * LOG (RND1 ) )

X1 = mean + sigma * U * COS (2 * pi * RND2)
X2 = mean + sigma * U * SIN (2 * pi * RND2)

________pi = 4 * ATN (1)

This is the Box-Muller algorithm.

______
Luis A. Afonso

== 2 of 6 ==
Date: Wed, Nov 14 2007 11:16 am
From: John Smith

Luis,

You never bothered to finish discussing your last error before you committed another one. Please pay attention.

On Nov 11, 4:22 am

You wrote:

"From this values we obtain the CONFIDENCE INTERVALS of the two-tailed tests relative to the probabilities 99%, 98%, 95% the parameter be inside."

Either the parameter is INSIDE or OUTSIDE. The probability that the parameter is inside is either 100% or 0%. Same for the probability that the parameter is outside.

Please defend your assertion that there can be a 99% probability that a parameter is inside the interval.

John

== 3 of 6 ==
Date: Wed, Nov 14 2007 11:38 am
From: "Luis A. Afonso"

RES NON VERBA

The QUADRUPLE´S DUO dared to fight the evidence:

1) The Empirical Distribution Function is fully able to provide the Critical Values of a Sample Statistics (as long as the random samples are attainable),

2) This method is rigorously Model Exact. (On contrary the usual ones are only mere approximations, in general).

3) The difference between the Empirical and the Exact Distribution Functions (Cumulative Density Function) can be made as short as we wish do assert the Dvoretzky- Kiefer-Wolfowitz inequality,

4) Quoting my post:
*** In fact the Dvoretzky-Kiefer-Wolfowitz assures us that ________p(d>e)<= 2*EXP(-2*n*e*e). Suppose that n=1E7 , e= 0.0005. Then: 2*EXP (-5) = 0.013 ***

5) These are FACTS: OPINIONS are unable to put down them. Not theoretically based arguments worth ZERO (RES NON VERBA).

6) This procedure was used in the paper (everybody can read):
_________Un nouveau test pour la distribution uniforme (L. Amaral Afonso, P. Duarte) was published (after a rigorous and accurate appreciation by the REFEREE TEAM) in the recognized Journal RSA (Revue de Statistique Appliquee), tome 40, nº1, (1992).

7) The TEAM should write a paper submitted to RSA (or JASA, if unable to write French) proving that I was wrong, and thousands of Statisticians too that used, since 1967*, the method for this purpose. While expecting this action WE, THE READERS, ARE FREE TO CLASSIFY THEM AS NOBODY IN STATISTICS,

* Hurbert W. Lilliefors:
ON THE KOLMOGOROV-SMIRNOV TEST FOR NORMALITY WITH MEAN AND VARIANCE UNKOWNS.
Journal of the American Statistical Association, volume 62, number 318, JUNE 1968.
_____
Luis Amaral Afonso

== 4 of 6 ==
Date: Wed, Nov 14 2007 1:39 pm
From: hrubin@odds.stat.purdue.edu (Herman Rubin)

In article <13104907.1195060592975.JavaMail.jakarta@nitrogen.mathforum.org>,
Yves <sunder_1600@yahoo.com> wrote:
>Hi,

>I read from Mark Joshi's Concept of Mathematical Finance pg 178 "..there is a simple method which gives reasonable, but not great, approximation is to simply add together 12 uniform variables and subtract 6. The results has correct mean, variance and third moment."

>Could someone explain this idea? How can I find out about quick method?

>Thanks.

The idea is that the distribution is close to standard normal;
it has the right mwan and variance, and the difference of the
densities is "small".

It is not quick; there are quicker and more accurate methods.
--
This address is for information only. I do not claim that these views
are those of the Statistics Department or of Purdue University.
Herman Rubin, Department of Statistics, Purdue University
hrubin@stat.purdue.edu Phone: (765)494-6054 FAX: (765)494-0558

== 5 of 6 ==
Date: Wed, Nov 14 2007 1:52 pm
From: John Smith

Luis,

No professional statistician believes that a parameter has 99% chance of falling in an interval. How about if I call up Lilliefors and ask him?

On Nov 11, 4:22 am

You wrote:

"From this values we obtain the CONFIDENCE INTERVALS of the two-tailed tests relative to the probabilities 99%, 98%, 95% the parameter be inside."

Either the parameter is INSIDE or OUTSIDE. The probability that the parameter is inside is either 100% or 0%. Same for the probability that the parameter is outside.

Please defend your assertion that there can be a 99% probability that a parameter is inside the interval.

John

== 6 of 6 ==
Date: Wed, Nov 14 2007 6:09 pm
From: Yves

Thanks all, for your replies.

What are some of the quicker and accurate methods?

==============================================================================
TOPIC: Weibull Parameter Comparison and Test Power
http://groups.google.com/group/sci.stat.math/browse_thread/thread/503436b4d74920a8?hl=en
==============================================================================

== 1 of 1 ==
Date: Wed, Nov 14 2007 11:40 am
From: info@goodstats.biz

Does anyone have information or expertise on the comparison of
Weibull location parameters from possibly different underlying Weibull
distributions (2 parameter)?

Also, any resources or information on calculation of the sample size
for such a comparison needed to achieve a given test power?

==============================================================================
TOPIC: wrong R-Squared value??
http://groups.google.com/group/sci.stat.math/browse_thread/thread/259e11ac412a3219?hl=en
==============================================================================

== 1 of 2 ==
Date: Wed, Nov 14 2007 11:56 am
From: "Kenneth M. Lin"

What software are you using?

"jantunes" <jasantunes@gmail.com> wrote in message
news:9884857.1195063651340.JavaMail.jakarta@nitrogen.mathforum.org...
> Hi all,
>
> I'm doing a linear regression to produce a trendline that can predict
> (more or less) some future data. The data is very correlated (something
> like R=0.98).
>
> This is what I do:
> 1) get 200 data points (x is a time series; y is CPU usage)
> 2) do linear regression based on those 200 points, resulting in some y'=a
> + bx
> 3) get R-squared (R^2=0.96) for the y'
>
> Then, I want to validate that trendline/prediction by comparing it with
> more real data:
> 4) get more data points, past the 200 points (eg 10000)
> 5) get R-squared for the y' (this time against the new data)
>
> The problem is that this new R-squared has very strange values (depending
> on the equation), either <0 (SSE/SST>1), >1 (SSR>SST), or near 0,99 (when
> in fact the trendline is not accurate).
> Has I said I have already tried different ways of calculating the
> R-squared. They all give the same value in 3), but strange values in 5).
>
> Am I doing some wrong assumption here? I pretty sure the calculations are
> correct... How can I validate my trendlines (linear regression models)?
>
> Thanks in advance!

== 2 of 2 ==
Date: Wed, Nov 14 2007 12:50 pm
From: Paige Miller

On Nov 14, 1:07 pm, jantunes <jasantu...@gmail.com> wrote:
> Hi all,
>
> I'm doing a linear regression to produce a trendline that can predict (more or less) some future data. The data is very correlated (something like R=0.98).
>
> This is what I do:
> 1) get 200 data points (x is a time series; y is CPU usage)
> 2) do linear regression based on those 200 points, resulting in some y'=a + bx
> 3) get R-squared (R^2=0.96) for the y'
>
> Then, I want to validate that trendline/prediction by comparing it with more real data:
> 4) get more data points, past the 200 points (eg 10000)
> 5) get R-squared for the y' (this time against the new data)
>
> The problem is that this new R-squared has very strange values (depending on the equation), either <0 (SSE/SST>1), >1 (SSR>SST), or near 0,99 (when in fact the trendline is not accurate).
> Has I said I have already tried different ways of calculating the R-squared. They all give the same value in 3), but strange values in 5).
>
> Am I doing some wrong assumption here? I pretty sure the calculations are correct... How can I validate my trendlines (linear regression models)?
>
> Thanks in advance!

I believe that when you take a validation data set, you can indeed
have such wild predictions that SSR > SST, or SSE > SST. This
indicates that there is a problem with the way the model fits to your
validation data.

I don't think R-squared is the proper way to compare the validation
fit to the training fit. I would compare the MSE from the validation
data set to the MSE of the training data set -- if they are close,
that's good, if they are widely different, that's bad.

--
Paige Miller
paige\dot\miller \at\ kodak\dot\com

==============================================================================
TOPIC: Call for Papers: The2008 International Conference of Applied and
Engineering Mathematics (ICAEM 2008)
http://groups.google.com/group/sci.stat.math/browse_thread/thread/0b3b81a132ceeb4d?hl=en
==============================================================================

== 1 of 1 ==
Date: Wed, Nov 14 2007 10:36 am
From: imecs_2008@iaeng.org

CFP: The 2008 International Conference of Applied and Engineering
Mathematics (ICAEM 2008)
From: IAENG - International Association of Engineers
http://www.iaeng.org/WCE2008/ICAEM2008.html

Important Dates:
Draft Paper Submission Deadline: 6 March, 2008
Camera-Ready papers & Pre-registration Due: 31 March, 2008
WCE 2008: 2-4 July, 2008

The conference ICAEM'08 is held under the World Congress on
Engineering 2008. The WCE 2008 is organized by the International
Association of Engineers (IAENG), a non-profit international
association for the engineers and the computer scientists. Our
congress committees have been formed with over two hundred and eighty
committee members who are mainly research center heads, faculty deans,
department heads, professors, and research scientists from different
universities like Cambridge, MIT and Oxford etc.

The conference proceedings will be published by IAENG (ISBN:
978-988-98671-9-5) in hardcopy. The full-text congress proceeding will
be indexed in major database indexes so that it can be assessed
easily. The Technology Research Databases (TRD) of CSA (Cambridge
Scientific Abstracts), DBLP and Computer Science Bibliographies have
promised to index the print proceeding in advance of its publication.
And after the publication of the proceeding, print copies will also be
sent to databases like IEE INSPEC, Engineering Index (EI) and ISI
Thomson Scientific for indexing. The accepted papers will also be
considered for publication in the special issues of the journal
Engineering Letters. Some participants may also be invited to submit
extended version of their conference papers for considering as book
chapters (soon after the conference).

The topics of the ICAEM'08 include, but not limited to, the
following:

Linear algebra and applications:
Matrix theory
Tensor analysis
Combinatorial linear algebra
Numerical linear analysis
Computational linear algebra
Markov chains
Iterative methods
Large-scale systems

Numerical analysis:
Numerical methods for ordinary and partial differential equation
Computational programming of numerical algorithms
Finite Elements
Scientific computing
Error analysis
Stability problems
Convergence analysis
Non-linear systems
Chaos systems
Dynamical systems
Simulation

Differential equations and applications:
Ordinary differential equations
Partial differential equations
Stochastic differential equations
Difference equations
Integral equations
Variation methods
Nonlinear systems
Perturbation problems

Probabilities and statistics:
Probability theory
Stochastic process
Applied statistics

Mathematical statistics
Estimation Theory
Identification
Simulation

Operations Research and Optimization:
Mathematical programming
Stochastic modeling
Decision theory
Game theory
Queueing theory
Reliability theory
Routing theory
Transportation problems
Financial mathematics
Inventory control
Scheduling
Optimization theory
Linear programming
Quadratic programming
Convex programming
Nonlinear programming
Stochastic programming
Combinatorial programming

Discrete Mathematics and Control:
Methods of algorithmic analysis
Algorithms
Combinatorial problems
Graph theory
Coding
Cryptology
Signal processing
Real time systems
Network optimization
Control theory

=========
Submission:

WCE 2008 is now accepting manuscript submissions. Prospective authors
are invited to submit their draft paper in full paper (any appropriate
style) to WCE{at}iaeng.org by 6 March, 2008. The submitted file can be
in MS Word format, PS format, or PDF formats.

The first page of the draft paper should include:
(1) Title of the paper;
(2) Name, affiliation and e-mail address for each author;
(3) A maximum of 5 keywords of the paper.

Te name of the conference that the paper is being submitted to should
also be stated in the email.

It is our target that the reviewing process and the result
notification for each submitted manuscript can be completed within one
month from its submission. The reviewing process is to ensure the
quality of the accepted papers in the WCE congress. The conferences
have enjoyed high reputation among many research colleagues (for
example, see the http://cs.conference-ranking.net/ or
http://www.conference-ranking.com/).

=============
ICAEM 2008 Conference Committee

Dr. Michael Bluck
Lecturer, Mechanical Engineering Department, South Kensington Campus,
Imperial College London,UK

Dr. Pavlos Christodoulides
Lecturer, General Studies Department, Higher Technical Institute,
Cyprus

Prof Bogdan Gabrys
Professor, Chair in Computational Intelligence, Computational
Intelligence Research Group, School of Design, Engineering &
Computing, Bournemouth University, UK

Prof. G. Ganesan
Dept. of Mathematics, JPN College of Engineering, India

Dr Yee Mey Goh
Research Officer, Innovative Manufacturing Research Centre,
Department of Mechanical Engineering, University of Bath, UK

Prof. Rosa Eva Pruneda Gonzalez
Associated Professor, Mathematics Department, Civil Engineering
School, University of Castilla-La Mancha, Spain

Prof. Angel Marin Gracia
Professor of Applied Mathematics and Statistical Deparment, de la
Universidad Politecnica de Madrid, Spain

Dr. Josep R. Herrero
Assistant professor, Department of Computer Architecture, Polytechnic
University of Catalonia, Spain

Dr. Ben James Hicks
Senior Research Fellow, Innovative Manufacturing Research Centre,
Department of Mechanical Engineering, University of Bath, UK

Dr Khalid Hussain
Director of Studies in Mechanical & Automotive Engineering, School of
Engineering, Design & Technology (EDT4), University of Bradford, UK

Prof. Allali Khalid
Faculte des Sciences et Techniques de Settat, France

Dr. Joshua R Omer
Research scientist, Division of Civil Engineering, Faculty of Advanced
Technology, University of Glamorgan, United Kingdom

Dr. Mourad Oussalah
Lecturer, Department of Electronic, Electrical and Computer
Engineering, The University of Birmingham, UK

Prof. Henry Power (co-chair)
Professor and Chair of Computational Fluid Dynamics
School of Mechanical, Materials and Manufacturing Engineering, The
University of Nottingham, UK
Editor of International Journal Engineering Analysis with Boundary
Elements

Dr. Mihailo Ristic (co-chair)
Senior Lecturer, Mechanical Engineering Department, Imperial College
London, UK

Prof. Sergei Sazhin (co-chair)
Professor of Thermal Physics, School of Engineering, Faculty of
Science and Engineering, The University of Brighton, UK

Professor Riti Singh (co-chair; CENG FIMECHE FRAES FIDGTE)
Professor of Gas Turbine Engineering
Director of the Gas Turbine Technology Centre
Director of the University Technology Centre in Performance
Engineering
Department of Power & Propulsion, School of Engineering, Cranfield
University, United Kingdom

Prof Sergei V. Utyuzhnikov (co-chair)
Senior Research Fellow, School of Mechanical, Aerospace & Civil
Engineering, University of Manchester, UK

Dr. Alexander Vikhansky
Research scientist, Department of Engineering, Queen Mary University
of London, UK

Dr Charles H.-T. Wang
Reader, School of Engineering & Physical Sciences, University of
Aberdeen, King's College, UK

Dr Jihong Wang
Senior Lecturer, Department of Electrical Engineering and Electronics,
University of Liverpool, UK

Prof. Jennifer Wen
Professor and Director of Research, Faculty of Engineering, Kingston
University, UK

Dr. Pihua Wen
Lecturer, Department of Engineering, Queen Mary, University of London,
UK

Prof. Alastair Wood
Professor of Engineering Mathematics, School of Engineering, Design &
Technology, University of Bradford, UK

Prof. Valentina Zharkova (co-chair)
Professor of Applied Mathematics, School of Informatics, University of
Bradford, UK

=============
WCE Congress Co-chairs

Prof. Alexander M. Korsunsky
Professor of Engineering Science
Dean, Trinity College
Department of Engineering Science, University of Oxford, UK

Prof. Andrew Hunter
Professor & Head of Department
Head of Vision and AI Research Group,
Dean of Research
Department of Computing and Informatics,
Lincoln University, UK

Prof. David WL Hukins, CPhys, FinstP, FIPEM, FRSE
Professor of Bio-medical Engineering
Head of Department of Mechanical & Manufacturing Engineering,
University of Birmingham, UK

Prof. Leonid Gelman (honorary co-chair)
Professor and Chair in Vibro-Acoustic Monitoring,
Chairman of COMADIT, British Institute of NDT,
Director, Centre of Vibro-Acoustics and Fatigue,
Department of Process and Systems Engineering, School of Engineering
Cranfield University, UK

Dr. Christopher John Hogger (honorary co-chair)
Senior Lecturer
Department of Computing
Imperial College London, UK

Prof. Darek J. Ceglarek (ICMEEM honorary co-chair)
Professor, International Manufacturing Centre, University of Warwick,
UK
Professor, Department of Industrial and Systems Engineering
The University of Wisconsin-Madison, USA
Fellow of CIRP; Associate Editor, IEEE Transactions on Automation
Science and Engineering, and ASME Transactions on Manufacturing
Science
and Engineering

Dr. Stephen Payne (ICSBB honorary co-chair)
University Lecturer in BioMedical Engineering
Dean of Degrees Keble College, Head of Physiological Understanding
through Modelling, Monitoring and Analysis Group,
Department of Engineering Science, University of Oxford, UK

More details about the WCE 2008 can be found at:
http://www.iaeng.org/WCE2008/index.html
http://www.iaeng.net/WCE2008/index.html
http://www.iaeng.com/WCE2008/index.html

More details about the International Association of Engineers, and the
IAENG International Journal of Computer Science, and the IAENG
International Journal of Applied Mathematics can be found at:
http://www.iaeng.org/about_IAENG.html
http://www.iaeng.org/IJCS/index.html
http://www.iaeng.org/IJAM/index.html
http://www.newswood.org/index.html
The official journal web site of Engineering Letters at:
http://www.engineeringletters.com
Other Engineering Letters web sites at:
http://www.engineeringletters.com
http://www.engineeringletters.net
http://www.engineeringletters.org
http://www.engineeringletter.com
http://www.engineerletters.com
http://www.engineerletter.com

********
It will be highly appreciated if you can circulate these calls for
papers to your colleagues.

==============================================================================
TOPIC: What is the difference between the rate of new infections?... and
incidence?...
http://groups.google.com/group/sci.stat.math/browse_thread/thread/a9dae1e4e0d44ae3?hl=en
==============================================================================

== 1 of 1 ==
Date: Wed, Nov 14 2007 2:54 pm
From: the zak

What is the difference between the rate of new infections?... and
incidence?...

For example, in regard to human immunodeficiency virus
acquired immune deficiency syndrome.

==============================================================================
TOPIC: solution manuals available
http://groups.google.com/group/sci.stat.math/browse_thread/thread/689ef71cf44d9de7?hl=en
==============================================================================

== 1 of 2 ==
Date: Wed, Nov 14 2007 3:48 pm
From: "techie"

I have the following manuals in pdf format
u can email and ask which u want at just US$8 via paypal
u can email me at aedministration(at)yahoo(dot)com to request and i will
reply back ASAP

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Daniel Shanks - Solved And Unsolved Problems In Number Theory (2Nd Ed), 1978.
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Elementary Differential Equations And Boundary Value Problems, 7Th Ed - Boyce
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Instructor's Solutions Manual - Marion, Thornton - Classical Dynamics of
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[Solutions Manual] Fundamental os Heat and Mass Transfer [Frank P. Incropera -
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accounts
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Solution Manual RF Circuit Design Theory and Application by Ludwig bretchko -
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{Physics for scientests & Engineers } Serway Jewett 6th ED. Solution manual
[2]

Engineering Mechanics Dynamics

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Solution Manual-Thomas Calculus Early Trascendentals 10th Ed

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Calculus Multivariable McCallum, Hughes-Hallett, Gleason 4th Ed.

Introduction to Probability Solution Manual

MATERIAL SCIENCES/METALLERGY

Solutions Manual for: Materials Science and Engineering An Introduction

Material and Engineering an integrated approach

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ELECTRICAL/ELECTRONICS

Solution Manual-Linear Circuit Analysis 2nd Edition by R.A. DeCarlo and P.
Lin

Classical Electrodynamics - 2nd Ed. John David Jackson by Kasper van Wijk New

Microwave Engineering 3E - David M Pozar - Solution Manual New

RF Circuit Design Theory and Application by Ludwig bretchko - Solution Manual
New

Solution Manual-Electrical Engineering: Principles and Applications 3rd ed
New

Fundamentals of Engineering Electromagnetics--Cheng New

Engineering Electromagnetics by Hayt 2001 New

Fundamentals of Electric Circuits 2nd Edition by Alexander Sadiku New

Microelectronic Circuits By Adel Sedra 5th Edition New

Introduction to Electric Circuits 6th Edition by Dorf, Svaboda New

Control Systems Engineering By Nice New

Electric Circuits 7th edition - Nilsson Solution Manual New

Selected Answers-Basic Engineering Circuit Analysis-7th Ed. by J. David Irwin
New

Solution Manual-Microelectronics-Digital & Analog Circuits & Systems by
Millman New

Halliday, Resnick- Fundamentals Of Physics (7Th Ed)- Solutions

DigitalComm_Fundamentals_App_Solution_Manual.pdf

== 2 of 2 ==
Date: Wed, Nov 14 2007 6:04 pm
From: ryan

looking for the complete (odd and even) solutions manual for Engineering Mechancis: Statics 6th ed. by Meriam and Kraige. also i would be interested in the solutions to the followup book Engineering Mechanics: Dynamics or the solutions to the combined Statics & Dynamics book. can pay with paypal.

==============================================================================
TOPIC: DO YOU KNOW what´s Lillifors address?
http://groups.google.com/group/sci.stat.math/browse_thread/thread/e93c8106aae1c873?hl=en
==============================================================================

== 1 of 4 ==
Date: Wed, Nov 14 2007 3:43 pm
From: "Luis A. Afonso"

DO YOU KNOW what´s Lillifors address?

*****************************
John Smith wrote:

Date: Nov 14, 2007 4:52 PM
Author: John Smith
Subject: Re: Turn a uniform number to normal random numbers

Luis,

No professional statistician believes that a parameter has 99% chance of falling in an interval. How about if I call up Lilliefors and ask him?
***********************************

MY RESPONSE

DO YOU KNOW what's Lilliefors address?
Is he indulging to read your and my thesis?
If so ****** invite him to put a post here in order that this point could finally be clarified. *********
_________
Sincerely, I would be much, much obliged
DO NOT GIVE UP!
__________

Luis Amaral Afonso

== 2 of 4 ==
Date: Wed, Nov 14 2007 5:36 pm
From: "Luis A. Afonso"

Date: Nov 14, 2007 2:16 PM
Author: John Smith
Subject: Re: Turn a uniform number to normal random numbers

Luis,

You never bothered to finish discussing your last error before you committed another one. Please pay attention.

On Nov 11, 4:22 am
You wrote:
"From this values we obtain the CONFIDENCE INTERVALS of the two-tailed tests relative to the probabilities 99%, 98%, 95% the parameter be inside." Either the parameter is INSIDE or OUTSIDE. The probability that the parameter is inside is either 100% or 0%. Same for the probability that the parameter is outside. Please defend your assertion that there can be a 99% probability that a parameter is inside the interval. John

Quoting from

ON THE KOLMOGOROV-SMIRNOV TEST FOR NORMALITY WITH MEAN AND VARIANCE UNKNOWN
Hubert W. Lilliefors , Journal of the American Statistical Society, VOLUME 62, NUMBER 318, June 1967.

**This note presents a table for use with the Kolmogorov-Smirnov statistics when testing that a set of observations are from a normal population but the mean and variance are not specified.
The procedure is: Given a sample of N observations, one determines
D=max | F*(X) - S(X)| where S(X) is the sample distribution function and F* (X) is the cumulative normal distribution function with mu= Xhat, the sample mean, and sigma^2 = s^2, the sample variance, defined with denominator N-1.
If the value of D exceeds the critical value in the table, we reject the hypotheses that the observations are from a normal population.
*******************
My comment

Why you do not READ and UNDERSTAND Lilliefors idea and cease, once for all, to say nonsence?
When you take care to be quiet on matters you do not grasp?
Why you think a little o the theoretical bases behind the procedure: Empirical Cumulative Frequencies and Exact DF, differences limited by the DKW inequality, Confidence Intervals defined by ECF?

_____

Luis Amaral Afonso

== 3 of 4 ==
Date: Wed, Nov 14 2007 6:07 pm
From: John Smith

Luis,

I just got off the phone with Lilliefors. He said that you should take a statistics course and learn the difference between a statistic and a parameter, because there is no 99% probability that a parameter falls in an interval.

John

== 4 of 4 ==
Date: Wed, Nov 14 2007 11:38 pm
From: "Luis A. Afonso"

John

You think I am a SUCKER?
BY PHONE, NEVE EVER!!!!!!
I DEMAND Hubert W, Lilliefors to deny here, in Sci Stat Math. his assertion (I copied EXACTLY FROM THE PAPER) that using HIS TABLE WE ARE able to get CONFIDENCE INTERVALS of the K-S TEXT .when the Population mean and std, deviation are unknown.
What a CRIMINAL evasive: YOU ARE AN INDECENT LIAR
PHONE!!!!!!!!!!!!!!!!!!!!!
(I expect yet - the PHONE TRICK - from you )
ARE YOU AWARE THAT NOBOBY BELIEVE IN THAT PHONE????????
___________

Luis Amaral Afonso

==============================================================================
TOPIC: Conditional Probability.
http://groups.google.com/group/sci.stat.math/browse_thread/thread/e22ead0b091bc3bf?hl=en
==============================================================================

== 1 of 2 ==
Date: Wed, Nov 14 2007 5:08 pm
From: "C. G. Montgomery"

probability@farfara.org wrote:

> What do you think of this?
>
> http://www.farfara.org/

I think none of the symbols are visible in Firefox, nor other reasonable
browsers.

cgm

== 2 of 2 ==
Date: Wed, Nov 14 2007 11:02 pm
From: "Nasser Abbasi"

"C. G. Montgomery" <cgm@physics.utoledo.edu> wrote in message
news:fhg68g$2cud$1@pyrite.mv.net...
> probability@farfara.org wrote:
>
>> What do you think of this?
>>
>> http://www.farfara.org/
>
> I think none of the symbols are visible in Firefox, nor other reasonable
> browsers.
>
> cgm

Yes, same here. with firefox

But with IE I could see them (not too clearly either, but can see them).

Nasser

==============================================================================
TOPIC: All Subjects' solutions manuals in Pdf format
http://groups.google.com/group/sci.stat.math/browse_thread/thread/bb7c8e5aca040e25?hl=en
==============================================================================

== 1 of 1 ==
Date: Wed, Nov 14 2007 8:41 pm
From: "ravi74"

Dear Sir,
I would to buy the solution manual for the book "Semiconductor
Device Fundamentals 1st Ed. by Robert F. Pierret", please reply.
Thank you,
Ravi

==============================================================================
TOPIC: Combinatorial probability problem
http://groups.google.com/group/sci.stat.math/browse_thread/thread/d26220a7e3943029?hl=en
==============================================================================

== 1 of 2 ==
Date: Wed, Nov 14 2007 10:29 pm
From: "Nasser Abbasi"

"Nasser Abbasi" <nma@12000.org> wrote in message
news:PQC_i.11741$4k.2754@newsfe11.phx...
>
> "John Uebersax" <jsuebersax@gmail.com> wrote in message
> news:1195042122.174589.94000@o80g2000hse.googlegroups.com...
>> Would someone kindly tell me what is the *formula* to answer this
>> question:
>>
>> An urn contains red, blue, and green balls, in equal proportions.
>> Drawing four balls (with replacement), what is the probability that at
>> least one color will not be represented among the four.
>>
>> Thanks in advance. (No, this is not a homework problem ;) )
>> --
>> John Uebersax PhD
>> http://ourworld.compuserve.com/homepages/jsuebersax/agree.htm
>>
>

>
> at least one color will not be selected means P(exactly one color not
> selected) or P(exactly 2 colors not selected)
>
> There are 3^4 ways to draw 4 balls. (wuthout replacement)
>
> There are 2^4 to draw 4 balls with one color missing. But there are 3
> colors, hence there are 3*(2^4) ways to draw it.
> There are 1 way to draw 4 balls from 2 color missing. But there are 3
> colors, hence there are 3 ways to draw it.
> Hence the chance at least one color missing is [3*(2^4)+3]/3^4 or 51/81=
> 0.62963
>

Opps, I overcounted again! I should have subracted P(exactly 2 colors not
selected) not added it (becuase it is counted allready)

Replace [3*(2^4)+3]/3^4 by [3*(2^4)-3]/3^4 and the answer will come out
5/9

Nasser

== 2 of 2 ==
Date: Wed, Nov 14 2007 10:57 pm
From: John Uebersax

On Nov 14, 3:48 pm, iandjmsm...@aol.com wrote:
> On 14 Nov, 14:14, John Uebersax <jsueber...@gmail.com> wrote:
>
>
>
>
>
> > Thank you Ian.
>
> > Two questions:
>
> > I seem, perhaps mistakenly, to enumerate 15 possible combinations, of
> > which only 3 include all
> > colors, or P = 3/15. Am I overlooking something obvious:
>
> > R B G
> > -----
> > 4 0 0
> > 3 1 0
> > 3 0 1
> > 2 2 0
> > 2 0 2
> > 2 1 1
> > 1 3 0
> > 1 2 1
> > 1 1 2
> > 1 0 3
> > 0 4 0
> > 0 3 1
> > 0 2 2
> > 0 1 3
> > 0 0 4
>
> > 2. What is the corresponding probability/formula for all colors being
> > represented given 5 balls drawn instead of 4?
>
> > Thanks,
>
> > John Uebersax
>
> > On Nov 14, 2:06 pm, iandjmsm...@aol.com wrote:
>
> > > On 14 Nov, 12:08, John Uebersax <jsueber...@gmail.com> wrote:
>
> > > > Would someone kindly tell me what is the *formula* to answer this
> > > > question:
>
> > > > An urn contains red, blue, and green balls, in equal proportions.
> > > > Drawing four balls (with replacement), what is the probability that at
> > > > least one color will not be represented among the four.
>
> > > > Thanks in advance. (No, this is not a homework problem ;) )
> > > > --
> > > > John Uebersax PhDhttp://ourworld.compuserve.com/homepages/jsuebersax/agree.htm
>
> > > The numbers of red, green and blue balls will have a multi-nomial
> > > distribution.
>
> > > The only way you will have all 3 colours represented is if there are 2
> > > reds, 1 green and one blue ball or 1 red, 2 greens and one blue ball
> > > or 1 red, 1 green and two blue balls.
>
> > > The probabality is 3*4!/(2!*1!*1!)*(1/3)^3
>
> > > The probability of at least one colour not being selected is therefore
> > > 5/9.
>
> > > Ian Smith- Hide quoted text -
>
> > - Show quoted text -
>
> The probabilities are
>
> R B G
> -----
> 4 0 0 1/81
> 3 1 0 4/81
> 3 0 1 4/81
> 2 2 0 6/81
> 2 0 2 6/81
> 2 1 1 12/81
> 1 3 0 4/81
> 1 2 1 12/81
> 1 1 2 12/81
> 1 0 3 4/81
> 0 4 0 1/81
> 0 3 1 4/81
> 0 2 2 6/81
> 0 1 3 4/81
> 0 0 4 1/81
>
> and the sum of the 3 which include all is 36/81 or 4/9.
>
> With similar logic, 3*(prob of selecting 3,1,1 + prob of selecting
> 2,2,1), the probability that at least one color will not be
> represented among the five balls drawn is 31/81.
>
> Ian Smith- Hide quoted text -
>
> - Show quoted text -

Okay, I see now.

Thanks,

John

==============================================================================
TOPIC: YOU THINK I AM A SUCKER , John ( R ) Smith?
http://groups.google.com/group/sci.stat.math/browse_thread/thread/9038fc3be1e9cc3c?hl=en
==============================================================================

== 1 of 1 ==
Date: Wed, Nov 14 2007 11:50 pm
From: "Luis A. Afonso"

YOU THINK I AM A SUCKER , John ( R ) Smith?

John

Luis Amaral Afonso

==============================================================================

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