Math Forum / Mathematics / Statistics / September 2006

The thick tails of an (untouchable) test statistics
The recommended test statistics used to find the C.I. of the difference of two Population proportions p1, p2 thought the observed ones p^1 and p^2 of sizes n1 and n2, is such that
_-z(alpha/2) <=
<= [p^1 – p^2 – (p1-p2)] / s <= ...

Reef Fish Bob is WRONG: Court Trials ARE NOT hypotheses tests
The simple fact that innocence (called technically NOT GUILTED, as in the general case, which is immaterial for this discussion) could be sometimes stated the Reef Fish thesis of EXACT ANALOGY between Test Hypotheses ...

   I was trying to estimate the correct sample size when the
population consists of count data (# of treatments per year) and am
somewhat confused. The population distribution should be Poisson in
this case : right ?

I was wondering, is it allowed to use the Pearson correlation
coefficient to analyze the dependence between a dichotomous dependent
variable and a continuous independent variable?
What is the difference between the Pearson correlation coefficient and

The model: Y = beta0 + beta1 X + e.
Neter et al. (1996): "For a given alpha level, the F test of beta1 = 0
is equivalent algebraically to the two-tailed t-test. [...] Thus we can
write: F = SSR / (SSE / (n - 2) )" (p. 78) which follows an

Here's a question for the html and web gurus.
I'd like to use html forms in a local (my machine only)
html page, viewed with a browser, to specify values for various
model parameters.  Then I'd like to write all these values to an

Dear list,
I'm totally confused right now and would like to check whether my
thoughts are correct. We have data of a single participant who
performed two different tasks 5 times. In other words, two conditions

Dear SPSS Support Group:
I have four columns of data under the variable names:
DrugName, Volume, CountyCode, and Price.
To generate my report I'm selecting:

I recently ran into this statement
"Some roadway and traffic variables have a clear effect on the lateral
position of the motorist
during both passing and non-passing events. However, several variables

No wonder Bob Ling is a bumbLING idiot. He is senile.
see this from the following thread from rec.travel.cruises
http://tinyurl.com/m4zcn
Is this Dick G.'s signature?

I have a simple 3 variable plus intercept regression model with good
goodness of fit statistics - high Rsq and t-ratios. When I calculate the
correlation matrix of the parameter estimates I get a large negative
correlation between the intercept and one of the other parameters (-0 ...

I have 10 sample distributions of (benchmarking) values and want to sort
them and determine significance of differences. They are not normally
distributed and consist of the identical numbers of samples.
I was now thinking about different approaches to determine the order of

Hi Readers of sci.stat.math,
Please use any (or all) the INFO below to file YOUR ABUSE
report(s) about NAG's disruption.
I have seen NOISE makers and Disruptive posters, but NONE

"Nag" covered up the post giving his HISTORY of disruption of
sci.stat.math, to be used by anyone to file an ABUSE report on him.
The post is:
http://groups.google.com/group/sci.stat.math/msg/5db7f26640f91268

I have about 10 million records, with about 20 predictors and a binary
response variable (0,1). About 5,000 of the records have a response of
1 with the rest being 0. I obviously would like to do some sampling,
but I'm not sure about how to do so, any suggestions ?