Re: Cauchy PDF + Parameter Estimate

2002-02-25 Thread Duncan Murdoch
-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: Estimating priors for Bayesian analysis

2001-05-04 Thread Duncan Murdoch
to each alternative is the key idea. Duncan Murdoch = Instructions for joining and leaving this list and remarks about the problem of INAPPROPRIATE MESSAGES 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 think this is a valid

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 = 2.05 A (0)^2 + B (0) + C

Re: unequal n's: quadratic weights

2001-01-31 Thread Duncan Murdoch
probably want to use "weighted least squares", with the weights equal to the group sizes. Duncan Murdoch = Instructions for joining and leaving this list and remarks about the problem of INAPPROPRIATE MESSAGES are avail

Re: unequal n's: quadratic weights

2001-01-30 Thread Duncan Murdoch
e 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 = Instructions for joining a

Re: Florida votes and statistical errors (fwd)

2000-12-10 Thread Duncan Murdoch
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 the problem of INAPPROPRIATE MESSAGES are available

Re: Is the vote brouhaha due to statistical falicy?

2000-11-19 Thread Duncan Murdoch
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 assume that (B) votes

Re: What is standard deviation exactly?

2000-05-22 Thread Duncan Murdoch
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, the sample standard deviation is 0.71, and t