Re: Cauchy PDF + Parameter Estimate

2002-02-25 Thread Duncan Murdoch
multi-modal. Duncan Murdoch = Instructions for joining and leaving this list, remarks about the problem of INAPPROPRIATE MESSAGES, and archives are available at http://jse.stat.ncsu.edu/ =

Re: The meaning of the p value

2001-02-02 Thread Duncan Murdoch
On 2 Feb 2001 01:12:59 -0800, [EMAIL PROTECTED] (Will Hopkins) wrote: >I've been involved in off-list discussion with Duncan Murdoch. At one >stage there I was about to retire in disgrace. But sighs of relief... his >objection is Bayesian. Just to clarify, I don't th

Re: unequal n's: quadratic weights

2001-01-31 Thread Duncan Murdoch
I'd suggest you use one of those. In particular, with unequal group sizes you probably want to use "weighted least squares", with the weights equal to the group sizes. Duncan Murdoch = Instructions for joining and le

Re: unequal n's: quadratic weights

2001-01-31 Thread Duncan Murdoch
Serve me right for not checking my work. Here's a correction: On Wed, 31 Jan 2001 12:37:13 GMT, [EMAIL PROTECTED] (Duncan Murdoch) wrote: >To find it, do this. Suppose the quadratic curve is A x^2 + B x + C. >Then you've got three equations: > > A (-1)^2 + B (-1) + C =

Re: unequal n's: quadratic weights

2001-01-30 Thread Duncan Murdoch
misunderstanding the question, but if you only have 3 groups, your estimates will interpolate the group means. Just solve the 3 linear equations in 3 unknowns, using whatever equation solving method you like. Duncan Murdoch

Re: article on Excel errors

2001-01-30 Thread Duncan Murdoch
On Sun, 28 Jan 2001 16:01:54 GMT, [EMAIL PROTECTED] (Duncan Murdoch) wrote in message <[EMAIL PROTECTED]>: >On 28 Jan 2001 04:04:04 -0800, [EMAIL PROTECTED] (Konrad >Halupka) wrote: >>Look up three papers which have been previously published in the PCPRo, >>all by

Re: article on Excel errors

2001-01-28 Thread Duncan Murdoch
rization*: "All content is Copyright Woodleyside IT Ltd © 2000 unless otherwise stated. Unauthorised copying, reproduction, emailing, quoting is strictly forbidden. Contact [EMAIL PROTECTED] for more information." What nonsense. Short quotes from published articles are "fair us

Re: Florida votes and statistical errors (fwd)

2000-12-10 Thread Duncan Murdoch
. Would he still have a lead if the same procedure was used in every state? He got a lot of votes from California based on a very close popular vote. Duncan Murdoch = Instructions for joining and leaving this list and remarks about

Re: Is the vote brouhaha due to statistical falicy?

2000-11-19 Thread Duncan Murdoch
as 4 candidates, but only chose to vote for 2. I would hope that the recount is an attempt to correct counting errors, not to create votes where there were none. Duncan Murdoch On Sun, 19 Nov 2000 09:32:31 -0500, Bob Wheeler <[EMAIL PROTECTED]> wrote: >The model is simplified, but I

Re: Is the vote brouhaha due to statistical falicy?

2000-11-19 Thread Duncan Murdoch
d, then surely the probability that a vote for Gore was attempted is 0, not 0.50. Duncan Murdoch = Instructions for joining and leaving this list and remarks about the problem of INAPPROPRIATE MESSAGES are available at

Re: What is standard deviation exactly?

2000-05-22 Thread Duncan Murdoch
t the standard deviation can't exceed half the range >(largest value minus smallest value). That's true for the n denominator ("population standard deviation"), but not for n-1 ("sample standard deviation"). For example, if your sample is just the two points 0 and 1,