Re: M/G/1 model

2001-06-25 Thread apharhus
It's the Kendall notation A/B/C/D/E A interarrival time distribution M: exponential D: deterministic E: Erlang K G: General B Servive time distribution M: exponential D: deterministic E: Erlang K G: General C number of parallel servers D system capacity E queuing ru

Re: Help with stats please

2001-06-25 Thread Rich Ulrich
On 24 Jun 2001 13:54:56 -0700, [EMAIL PROTECTED] (dennis roberts) wrote: > At 12:20 PM 6/24/01 -0700, Melady Preece wrote: > >Hi. I am teaching educational statistics for the first time, and although I > >can go on at length about complex statistical techniques, I find myself at a > >loss with t

Marijuana and heart attacks and similar research on sex

2001-06-25 Thread Simon, Steve, PhD
Recently, there was an extensive discussion about how to analyze data involving marijuana use and heart attacks. I just came across an interesting study that shows how to do a rigorous analysis in a very similar situation, the risk of heart attacks after sex. The actual paper appears in JAMA, but

Re: Help with stats please

2001-06-25 Thread Jerry Dallal
Melady Preece wrote: > > Hi. I am teaching educational statistics for the first time, and although I > can go on at length about complex statistical techniques, I find myself at a > loss with this multiple choice question in my test bank. I understand why > the range of (b) is smaller than (a)

Re: Marijuana

2001-06-25 Thread David C. Ullrich
On Mon, 25 Jun 2001 09:09:52 GMT, [EMAIL PROTECTED] (Graaagh the Mighty) wrote: >On Sun, 24 Jun 2001 14:39:06 GMT, [EMAIL PROTECTED] (David C. >Ullrich) sat on a tribble, which squeaked: > [1]>>That's one scary thing - in fact there are places in >>Windows95 where the system _regularly_ creates G

Re: cigs & figs

2001-06-25 Thread Herman Rubin
In article <[EMAIL PROTECTED]>, Rich Ulrich <[EMAIL PROTECTED]> wrote: > - re: some outstandingly confused thinking. Or writing. >On Sat, 23 Jun 2001 15:25:31 GMT, mackeral@remove~this~first~yahoo.com >(J. Williams) wrote: >[ snip; Slate reference, etcetera ] >> ... My mother was 9

Re: Help with stats please

2001-06-25 Thread Herman Rubin
In article <006901c0fce2$d07c7640$[EMAIL PROTECTED]>, Melady Preece <[EMAIL PROTECTED]> wrote: >Hi. I am teaching educational statistics for the first time, and although I >can go on at length about complex statistical techniques, I find myself at a >loss with this multiple choice question in my

Latent trait models and factor analysis

2001-06-25 Thread Michael Preminger
Hello! In their book from 1999, "Latent Variable Models and Factor Analysis", pages 85, as well as110-119 David Bartholomew and Martin Knott describe a method for approximating maximum likelihood estimation of the model coefficients within dichotomous/polytomous latent trait models. I have a som

Re: a form of censoring I have not met before

2001-06-25 Thread Donald Burrill
Hi, Margaret. I've given some thought to your problem; here's a restatement of it, and a few thoughts. Recapitulating, in case I've misunderstood a small point or three, you have "a 3-factor experiment", by which I assume you mean a complete, balanced, crossed design: R(AxBxC) for observat

Re: cigs & figs

2001-06-25 Thread J. Williams
On Sun, 24 Jun 2001 16:37:48 -0400, Rich Ulrich <[EMAIL PROTECTED]> wrote: >What rights are denied to smokers? Many smokers, including my late mother, feel being unable to smoke on a commerical aircraft, sit anywhere in a restaurant, etc. were violation of her "rights." I don't agree as a no

M/G/1 model

2001-06-25 Thread *Silvia*
I am studying the M/G/1 model for retrial queues. I know that "1" in M/G/1 means that there is a single server. Does anyone can tell me what "M" and "G" exactly stand for? Thanks in advance, Silvia = Instructions for joining and lea

Re: Marijuana

2001-06-25 Thread Graaagh the Mighty
On Sun, 24 Jun 2001 14:39:06 GMT, [EMAIL PROTECTED] (David C. Ullrich) sat on a tribble, which squeaked: >That's one scary thing - in fact there are places in >Windows95 where the system _regularly_ creates GPF's; >something to do with thunking or something. > >But the scary thing about the quote