Ts), with some bits about the "test" questions
you refer to, but I can't quite remember the title. I've searched
the catalog of my old library, and this _may_ be it:
Lemann, Nicholas.
The big test : the secret history of the American meritocracy
New York : Farrar, Str
ic analysis, he would
never have given us the TI-83!
:-)
--
Stan Brown, Oak Road Systems, Cortland County, New York, USA
http://oakroadsystems.com/
"My theory was a perfectly good one. The facts were misleading."
--
Rich Ulrich <[EMAIL PROTECTED]> wrote in sci.stat.edu:
>[ posted and e-mailed.]
Ditto.
>On Sat, 29 Dec 2001 16:46:10 -0500, [EMAIL PROTECTED] (Stan Brown)
>wrote:
>> Now we come to the part I'm having conceptual trouble with: "Have
>> you proven that one ga
when the true value is 0 than when the true value is 13. So
>the error rate from jumping the wrong way when there is a true
>difference is less than the error rate from jumping any way when there
>is no true difference, and you are justified in stating the direction of
>the distance.
du
And of course all of Usenet is archived at
http://groups.google.com/advanced_group_search
under (in this case) newsgroup sci.stat.edu. The OP can get the
whole thread s/he's interested in, as one Web page.
result.
Am I being over-scrupulous here? Am I not even asking the right
question? Thanks for any enlightenment.
(If you send me an e-mail copy of a public follow-up, please let me
know that it's a copy so I know to reply publicly.)
--
Stan Brown, Oak Road Systems, Cortland County, New Yor
Glen Barnett <[EMAIL PROTECTED]> wrote in sci.stat.edu:
>Stan Brown wrote:
>> But is it worth it? Don't the "easy graders" and :"tough graders"
>> pretty much cancel each other out anyway?
>
>Not if some students only get hard graders and some
ng".
But is it worth it? Don't the "easy graders" and :"tough graders"
pretty much cancel each other out anyway?
--
Stan Brown, Oak Road Systems, Cortland County, New York, USA
http://oakroadsystems.com
My
to
see whether their question has already been answered. Of course, I
have to bear my share of the blame for reinforcing that behavior by
posting a helpful answer!)
--
Stan Brown, Oak Road Systems, Cortland County, New York, USA
http://oakroadsystems.com/
e to turn on "macro virus" warning in your copy of
Microsoft Word, which should defang this particular risk.
--
Stan Brown, Oak Road Systems, Cortland County, New York, USA
http://oakroadsystems.com/
"My theory was a perfectly good one. The facts
sed by a straight-line
model.
--
Stan Brown, Oak Road Systems, Cortland County, New York, USA
http://oakroadsystems.com/
"My theory was a perfectly good one. The facts were misleading."
rote in the letter, saying, Set ye Uriah
>> in the forefront of the hottest battle, and retire ye from him, that he
>> may be smitten, and die.") on any possible finding in the other
>> direction, may seem attractive. A moment's thought should persuade us
>> that i
which I love to support.
Bibliofind (similar name) seems to be part of Amazon.com now.
--
Stan Brown, Oak Road Systems, Cortland County, New York, USA
http://oakroadsystems.com
My reply address is correct as is. The courtesy of providing a correct
rep
Jon Miller <[EMAIL PROTECTED]> wrote in sci.stat.edu:
>
>Stan Brown wrote:
>
>> I would respectfully suggest that the OP _first_ carefully study the
>> textbook sections that correspond to the missed lectures, get notes from
>> a classmate
>
>This part is o
[cc'd to previous poster]
Rich Ulrich <[EMAIL PROTECTED]> wrote in sci.stat.edu:
>I think I could not blame students for floundering about on this one.
>
>On Thu, 29 Nov 2001 14:39:35 -0500, [EMAIL PROTECTED] (Stan Brown)
>wrote:
>> "The manufacturer of a pa
[cc'd to previous poster; please follow up in newsgroup]
Robert J. MacG. Dawson <[EMAIL PROTECTED]> wrote in
sci.stat.edu:
>Stan Brown wrote:
>> "The manufacturer of a patent medicine claims that it is 90%
>> effective(*) in relieving an allergy for a period of
rejection is also tentative.
>The difference is that the null has this privileged position.
Thanks -- that makes some sense.
--
Stan Brown, Oak Road Systems, Cortland County, New York, USA
http://oakroadsystems.com
My reply address is correct as i
to fill in any
remaining gaps or answer any questions.
--
Stan Brown, Oak Road Systems, Cortland County, New York, USA
http://oakroadsystems.com
My reply address is correct as is. The courtesy of providing a correct
reply address is more
Gus Gassmann <[EMAIL PROTECTED]> wrote in sci.stat.edu:
>Stan Brown wrote:
>> "The manufacturer of a patent medicine claims that it is 90%
>> effective(*) in relieving an allergy for a period of 8 hours. In a
>> sample of 200 people who had the allergy, the med
pid
and missing some reason why it _would_ be legitimate to draw a
conclusion from p=.9908?
--
Stan Brown, Oak Road Systems, Cortland County, New York, USA
http://oakroadsystems.com
My reply address is correct as is. The courtes
s there an elegant way to write
expressions for the probabilities of the various x's?
--
Stan Brown, Oak Road Systems, Cortland County, New York, USA
http://oakroadsystems.com
My reply address is correct as is. The courtesy of providing a correct
reply
What _is_ "biostatistics", anyway? A student asked me, and I
realized I have only a vague idea.
--
Stan Brown, Oak Road Systems, Cortland County, New York, USA
http://oakroadsystems.com
My reply address is correct as is. The courtesy of p
didn't ask: talk to a lawyer. Unless you
_intend_ to donate your idea to Altavista, you need to make sure it
is protected before you present it to them.
--
Stan Brown, Oak Road Systems, Cortland County, New York, USA
http://oakroadsystems.com
My re
Jerry Dallal <[EMAIL PROTECTED]> wrote in sci.stat.edu:
>Problem: Divide 95 by 19.
>
>Student writes 95/19, 9's cancel, leaving 5/1 = 5 .
>How much credit do you award?
Perfect example!
--
Stan Brown, Oak Road Systems, Cortland County, New York, USA
(or both) may be quite likely to
apply correct statistical techniques correctly in the real world.
How do we know? How can we do a better job of evaluating students
than merely setting and marking written timed exams?
--
Stan Brown, Oak Road Systems, Cortland County, New York, USA
that assumption. (Note to
self: ask my own students at the end of the course.)
We call them "crib sheets".
--
Stan Brown, Oak Road Systems, Cortland County, New York, USA
http://oakroadsystems.com
My reply address is correct as is. The court
rthless if you can't
justify it.
Someone else mentioned projects. Students do two in the semester, a
test of population proportion based on a sample of 100 and a larger
project of their own choosing.
--
Stan Brown, Oak Road Systems, Cortland County, New York, USA
g that
standard handout -- helps the student to decide which ideas are
important and also to learn those ideas.
--
Stan Brown, Oak Road Systems, Cortland County, New York, USA
http://oakroadsystems.com
My reply address is correct as is. The courtesy of providing a
t their mode.
This is an interesting idea. I'll be waiting to see others' comments
on it.
--
Stan Brown, Oak Road Systems, Cortland County, New York, USA
http://oakroadsystems.com
My reply address is correct as is. The courtesy of providing a correct
ributions, the two would be rather different.
--
Stan Brown, Oak Road Systems, Cortland County, New York, USA
http://oakroadsystems.com
My reply address is correct as is. The courtesy of providing a correct
reply address is more important to me than t
field of interest, gathering
data, and planning and computing the proper statistical tests to
answer the question.
> As a way to get students going so they can study
>some substantial problems...whatever works!
Now there we're in complete agreement!
--
Stan Brown, Oak Road System
Warren <[EMAIL PROTECTED]> wrote in sci.stat.edu:
>I don't feel M&M's are any more trivial to introduce the concepts than
>the usual "chips in an urn" or "balls from a jar".
Using M&Ms has one huge pedagogical advantage: most people learn
better when more of their senses are engaged. I would ex
ould nicely illustrate the larger variability that
comes smaller samples.
--
Stan Brown, Oak Road Systems, Cortland County, New York, USA
http://oakroadsystems.com
My reply address is correct as is. The courtesy of providing a correct
reply address is mor
is the probability that N students responding randomly
on M choices will all make the same response.
In your scenario, N=6, M=4, p=.25^5 = 1/1024 = about .098%.
--
Stan Brown, Oak Road Systems, Cortland County, New York, USA
http://oakroadsystems.com
My r
really goes up to
>89.5. Thus the range was defined as 89.5 - 49.5... thus the additional
>one unit...
Perhaps a better argument is that if you count the numbers you get
forty of them: 50, 51, 52, ..., 59 makes ten, and similarly for the
60s, 70s, and 80s.
--
Stan Brown, Oak Roa
more complicated. :-)
--
Stan Brown, Oak Road Systems, Cortland County, New York, USA
http://oakroadsystems.com
My reply address is correct as is. The courtesy of providing a correct
reply address is more important to me than time sp
g the n tosses.
>
>Find P(A=2) analytically (not by simulation) for the case n=5.
I don't know what you mean by "simulation", but since you specify
N=5 probably the most direct solution to your question is this: list
all 32 possible sequences of heads and tails. Count how many of
Gus Gassmann <[EMAIL PROTECTED]> wrote in sci.stat.edu:
>Stan Brown wrote:
>> Another instructor and I gave the same exam to our sections of a
>> course. Here's a summary of the results:
>> Section A: n=20, mean=56.1, median=52.5, standard dev=20.1
>> S
hypothesis to test, which test to apply, and how to
interpret the results. That's where I'm particularly grateful for
everyone's feedback.
--
Stan Brown, Oak Road Systems, Cortland County, New York, USA
http://oakroadsystems.com
My rep
are to suggest details, but surely it is possible to configure
it so that this does not happen? Bounce messages should go to the
owner of the mailing list, not to someone who is not even a member.
--
Stan Brown, Oak Road Systems, Cortland County, New York, USA
utation means
anything. So let me pose my question: given the two sets of results
shown earlier, _is_ there a valid statistical method to say whether
one class really is learning the subject better than the other, and
by how much?
--
Stan Brown, Oak Road Systems, Cor
is not somehow opposed to "extant
science", it is the foundation of it. It's naive at best to cite
"quantum physics" as support for any sort of mystical anti-
scientific views.
--
Stan Brown, Oak Road Systems, Cortland County, New York, USA
3.
>Finally what difference does it make how many random samples you take (ie.
>100 or 1000). What statistic or parameter does this speak to?
None that I know, in a formal sense. If you take 100 random samples
of size 81, or 100,000 random samples of size 81, your histogram of
sample means will
ourse, I don't believe the textbook ever uses
that abbreviation (and I know I don't). Perhaps you might want to
define it the first time on that page: SEM = standard error of the
mean.
--
Stan Brown, Oak Road Systems, Cortland County, New York, USA
l
factors, which could have great impact on his performance.
--
Stan Brown, Oak Road Systems, Cortland County, New York, USA
http://oakroadsystems.com
My reply address is correct as is. The courtesy of providing a correct
reply a
45 matches
Mail list logo
