Jim Snow wrote:
1. George Marsaglia and Wal Wan Tsang published a paper dealing with
your problem which gives an efficient procedure for all values of
parameters. It is
The Monty Python Method for Generating Gamma Variables
in the Journal of Statistical Software
the reality of this is ... sometimes getting notes from other students is
helpful ... sometimes it is not ... there is no generalization one can make
about this
most student who NEED notes are not likely to ask people other than their
friends ... and, in doing so, probably know which of their
Title: ÓŻݻ££¹ÉµÀ¸ß¼¶»áÔ±·þÎñ
Slutsky's theorem says that if Xn -(D) X and Yn -(P) y0, y0 a
constant, then
Xn + Yn -(D) X+y0. It is easy to make a counterexample if both Xn and
Yn converges in distribution. Anybody have an counterexample when Yn
converges in probability to a non-constant random variable?
Kjetil Halvorsen
Whether we can get causal inferences out of correlation and equations has
been a dispute between two camps:
For causation: Clark Glymour (Philosopher), Pearl (Computer scientist),
James Woodward (Philosopher)
Against: Nancy Cartwright (Economist and philosopher), David Freedman
Just in case someone is interested in the Harvard instance
that I mentioned -- while you might get the article from a newsstand
or a friend --
On Sun, 02 Dec 2001 19:19:38 -0500, Rich Ulrich [EMAIL PROTECTED]
wrote:
[ ... ]
Now, in the NY Times, just a week or two ago. The
dean of
generally speaking, it is kind of difficult to muster sufficient evidence
that the amount of grade inflation that is observed ... within and across
schools or colleges ... is due to an increase in student ability
i find it difficult to believe that the average ability at a place like
harvard
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Is it a fair interpretation of what you are saying to say that the
process of correlating phenomena needs to be distinguished from the
My experimental units are 100 classrooms on campus. As I walk into
each room I flip a perfectly fair coin in a perfectly fair way to determine
whether I turn the room lights on (X = 1) or off (X = 0). I then determine
whether or not I can read the fine print on my bottle of smart pills
Classic study: Correlation between local stork population and local births.
-Original Message-
From: Stu [mailto:[EMAIL PROTECTED]]
Sent: Thursday, December 06, 2001 1:08 AM
To: [EMAIL PROTECTED]
Subject: Re: When does correlation imply causation?
My favorite original example is the
i would say that karl has demonstrated that IF we know conditions of
manipulation or not ... we can have a better or lesser idea of what (if
anything) impacted (caused?) what
that i will grant him
to argue that r or eta has anything to do with this ... i would
respectfully disagree
they
jenny wrote:
What should I do with the missing values in my data. I ned to perform
a t test of two samples to test the mean difference between them.
How should I handle them in S-Plus or SAS?
Thanks.
JJ
If you are doing paired tests, then the pairs with missing values will
have to be
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