Re: Hypothesis

The EDSTAT traffic after the initial submission by Dennis Roberts on 4/7/2000 interested me. A lot of good thoughts on teaching a fundamental concept.   His proposal resulted in a total of 117 messages up to 4/27/2000. This may be a record on comments to a single theme. It struck a cord w

Re: Grad Student needs guidance

I am a graduate student in an engineering program which emphasizes statistical methods for process improvement and/or product development. I have found that I love applying statistical methods for process/product development and testing. I would not even mind a company that is developing softwa

Re: Is Bootstrapping Appropriate?

From: Herman Rubin <[EMAIL PROTECTED]> Newsgroups: sci.stat.consult, sci.stat.edu, sci.stat.math > In article , > Greg Heath <[EMAIL PROTECTED]> wrote: > >Date: Fri, 28 APR 2000 00:00:45 GMT > >From: [EMAIL PROTECTED] > > ..

Re: Is Bootstrapping Appropriate?

Date: Fri, 28 APR 2000 16:04:34 -0400 From: Rich Ulrich <[EMAIL PROTECTED]> > On Fri, 28 Apr 2000 03:31:45 -0400, Greg Heath > <[EMAIL PROTECTED]> wrote: > > < snip, various > > > My simulation currently assumes that the residuals are Gaussian. If > > this is a bad assumption, I need to know

Re: Is Bootstrapping Appropriate?

On Fri, 28 Apr 2000 03:31:45 -0400, Greg Heath <[EMAIL PROTECTED]> wrote: < snip, various > > My simulation currently assumes that the residuals are Gaussian. If > this is a bad assumption, I need to know ASAP to prevent higher level > decision makers from making some very costly mistakes. <

Re: Statistical Software

Hello to all from hot Austin, I like Minitab too for all-purpose stats stuff. The graphing is great, and the Monte Carlo abilities are very good too. However, my vote (at least from an applied psych area covering cognitive psych, psycholinguistics, measurement, speech-language pathology, and a

Re: Question about kappa

On 27 Apr 2000 13:24:01 -0700, [EMAIL PROTECTED] (Robert McGrath) wrote: > I am looking for a formula for kappa that applies for very special > circumstances: > > 1) Two raters rated each event, but the raters varied across event. > 2) The study involved 100 subjects, each of whom generated app.

What is the logarithmic distribution? (many questions)

General question, I've seen two descriptions of "logarithmic distribution". One is related to the frequency of digits called Benford's law (digit 1 occurs more frequently than 2, 2 than 3, etc) whose explanation is that it is the result of a mixture of distributions. The other description is a 2-p

Grad Student needs guidance

I am a graduate student in an engineering program which emphasizes statistical methods for process improvement and/or product development. I have found that I love applying statistical methods for process/product development and testing. I would not even mind a company that is developing software

Re: Statistical Software

see http://www.e-academy.com ... for lots of software ... including minitab at 'rental' prices ... At 02:04 PM 4/28/00 -0400, Donald F. Burrill wrote: >On Fri, 28 Apr 2000 [EMAIL PROTECTED] wrote: > >> I need to find a statistical software packages. Most of my statistical >> work has been done u

Re: Unbalance Nested (Hierarchical) Design

On Fri, 28 Apr 2000, Arvind Shah wrote: > I have an UNBALANCED nested (also called hierarchial) design with > Factor A being fixed and the Factor B (within A) random. So my ANOVA > has the line entries (for source): A, B(A), Error (or within cell) and > total. I am looking for the expected m

Re: no correlation assumption among X's in MLR

On Fri, 28 Apr 2000, EAKIN MARK E wrote: > Besides independent normal errors with mean zero and constant > variance, some (many?) econometric text books do make the assumption > that the independent variables are uncorrelated. For example see > > Gujarti, Damodar (1988), _Basic Econometrics 2n

Re: Data Mining blooper and Related Subjects (fwd)

- Forwarded message from Debasmit Mohanty - I think, now is the time when we have to decide "Do we accept DATA MINING as a part of statistics or do we keep neglecting this field as before". I am sure there would be few statistics students like me who feel that Data Mining is very much

Re: Statistical Software

On Fri, 28 Apr 2000 [EMAIL PROTECTED] wrote: > I need to find a statistical software packages. Most of my statistical > work has been done using Microsoft Excel. This has worked out fine, > however, I need to find a more heavy duty package but nothing over > whelming. I perform some simple statis

Re: no correlation assumption among X's in MLR

At 11:09 AM 4/28/00 -0500, EAKIN MARK E wrote: > >Besides independent normal errors with mean zero and constant >variance, some (many?) econometric text books do make the assumption that >the independent variables are uncorrelated. For example see > >Gujarti, Damodar (1988), _Basic Econometrics 2

Re: truncated Binomial

In article <8e7etv$msp$[EMAIL PROTECTED]>, <[EMAIL PROTECTED]> wrote: >Hi, >Could anybody tell me how to write the density of the binomiale >distribution when x=0 is not observed? will the MLE of p different than >X-bar in the case of truncated Binomial? How about the variance and the >bias of

Unbalance Nested (Hierarchical) Design

I have an UNBALANCED nested (also called hierarchial) design with Factor A being fixed and the Factor B (within A) random. So my ANOVA has the line entries (for source): A, B(A), Error (or within cell) and total. I am looking for the expected mean squares and approaches for computing confidence

Re: Data Mining blooper and Related Subjects

I have been following the discussion on Data Mining blooper for a while. Being a first year graduate student in statistics, my comments on this issue might sound premature. Nevertheless, I would put forward my observations. What I have learnt so far from my interaction with the statisticians in

no correlation assumption among X's in MLR

Besides independent normal errors with mean zero and constant variance, some (many?) econometric text books do make the assumption that the independent variables are uncorrelated. For example see Gujarti, Damodar (1988), _Basic Econometrics 2nd edition_, McGraw Hill, p. 166 Mark Ea

Re: Process Capability / Specification Limits

Ed, Was the spec written with an understanding of the measurement resolution? Why not ask whoever wrote the spec? I have been following numerous discussions through other sources about design, gd&t, and metrology. Miscommunication is a major problem. Statistics won't help you decide what the perso

Re: Blackjack problem

> "The Player may choose to play exactly the same rules > as the Dealer is REQUIRED to play; or the Player may choose some of the > other > options. Since the Player has more choices or options in play than does the > Dealer, why does the Dealer have the statistical advantage? It seems to me > th

RE: Blackjack problem

Clip from earlier message... "The Player may choose to play exactly the same rules as the Dealer is REQUIRED to play; or the Player may choose some of the other options. Since the Player has more choices or options in play than does the Dealer, why does the Dealer have the statistical advantage?

Re: Blackjack problem

On 27 Apr 2000 13:50:24 -0700, [EMAIL PROTECTED] (Donald F. Burrill) wrote: [ ... ] > (3) It is true for Blackjack, unlike nearly all other Las Vegas-type > games, that a variable strategy on the part of the Player can change the > statistical advantage to the Player's side. It should not su

RE: Blackjack problem

Paul Bernhardt writes: >True, but card counters abound. Last month's (April, 00) Discover >Magazine had an article on gambling and mentioned a newly developed card >counting strategy that you don't need to be a genius to execute >effectively. I have a buddy who has placed in a Vegas Blackjack

Re: Is Bootstrapping Appropriate?

In article , Greg Heath <[EMAIL PROTECTED]> wrote: >Date: Fri, 28 APR 2000 00:00:45 GMT >From: [EMAIL PROTECTED] ... >One variable, 20 measurements per second, 26.25 seconds (526 measurements). >The 1/e dec

RE: Data Mining blooper and Related Subjects

I respectfully disagree with Michael Wyatt. I come from an academic background and now work outside of academia, except for the occassional course here or there. I too report to a manager or managers, depending on the circumstances. But my experiences have not been the same as his. I am constantly

Statistical Software

I need to find a statistical software packages. Most of my statistical work has been done using Microsoft Excel. This has worked out fine, however, I need to find a more heavy duty package but nothing over whelming. I perform some simple statistical work but would like to begin to use a more power

Re: Question about kappa

I think I would consider using generalizability theory for this problem. Shavelson and Webb have a good book out on the subject, published by Sage. On Thu, 27 Apr 2000, Robert McGrath wrote: > I am looking for a formula for kappa that applies for very special > circumstances: > > 1) Two raters

Re: Data Mining blooper and Related Subjects

...And it extends even further. Many of us who toil in areas outside of academia have our work and productivity "supervised" by managers or directors who have little or no training in statistics, beyond a survey course. They receive the flashy brochures and read the ads that promise analytical sof

Re: Q: error on RMS, __please__ help.

I am sorry for the confusion. English is not my native language and sometimes I am not precise enough. What I meant with the term error, was the statistical error of a measurement. I am interessted in the statistical relevance of the measurement (confidence interval that the measured value is cor

Re: Is Bootstrapping Appropriate?

Date: Fri, 28 APR 2000 00:00:45 GMT From: [EMAIL PROTECTED] > > 1. Randomly draw, with replacement, 526 measurements. > > You are only justfied in resampling in this way if you know that all > your observations are iid. I didn't quite follow your problem but it > sounds that the iid assumption i

Re: Is Bootstrapping Appropriate?

Date: Thu, 27 APR 2000 17:17:05 -0400 From: Rich Ulrich <[EMAIL PROTECTED]> > On Wed, 26 Apr 2000 20:43:02 -0400, Greg Heath > <[EMAIL PROTECTED]> wrote: > > > Can you help or lead me to the appropriate reference? > > > > I have 526 radar measurements evenly sampled over 26.25 sec (i.e., pulse