janne [EMAIL PROTECTED] wrote in message
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I have a correlation formula I don't get to work. And we must use this
formula on the test. Let me give you an example: Let's say X and Y
are:
xy
1 68
2 91
3 102
3 107
4 105
4 114
5
Glen [EMAIL PROTECTED] wrote in message
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Chia C Chong [EMAIL PROTECTED] wrote in message
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I plotted a histogram density of my data and its smooth version using
the
normal kernel function. I tried to plot the
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another way to phrase thatis
for each case find x= X_XBAR and y = YBAR
then multiply x*y (this is called a cross-product).
then find the
Hi,
[Please excuse multiple postings, but I need to get feedback from several
email communities.]
The discussion of Excel's limitations on edstat-l (archives are available
at http://jse.stat.ncsu.edu/) has
been interesting and informative. I agree substantially with David
Heiser that Excel can be
In sci.stat.consult janne [EMAIL PROTECTED] wrote:
: I have a correlation formula I don't get to work. And we must use this
: formula on the test. Let me give you an example: Let's say X and Y
If you don't know with x(with a line above) MEANS, you need to STUDY your
text. Also your instructor
sum of deviations around a mean always = 0
X-X
1-3.5=2.5
2-3.5=-1.5
3-3.5=-0.5
3-3.5=-0.5
4-3.5=0.5
4-3.5=0.5
5-3.5=1.5
6-3.5=2.5
0
As you see the answer is zero. What do I do wrong? and the same with
Y-Y(with a line above). It turns out to be zero. Please help me to tell
how I
sorry for late reply
ranking is the LEAST useful thing you can do ... so, i would never START
with simple ranks
any sort of an absolute kind of scale ... imperfect as it is ... would
generally be better ...
one can always convert more detailed scale values INTO ranks at the end if
necessary
janne [EMAIL PROTECTED] wrote in message
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How do I do the first (X-X(with a line above))? I have tried to take
_
X-X
*snip*
0
As you see the answer is zero. What do I do wrong?
You calculate
SUM[(x-x_bar)] * SUM[(y-y_bar)]
instead
I have a page of links to data:
http://www.keypress.com/fathom/Data_Sets.html
Perhaps you can find something there.
At 11:01 PM -0700 1/4/02, Michael Joner wrote:
The new semester has started and one of my first assignments has been to
find some datasets that I'd be interested in evaluating
some minitab files and other things are here
http://roberts.ed.psu.edu/users/droberts/datasets.htm
_
dennis roberts, educational psychology, penn state university
208 cedar, AC 8148632401, mailto:[EMAIL PROTECTED]
Chia C Chong [EMAIL PROTECTED] wrote in message
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Glen [EMAIL PROTECTED] wrote in message
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Chia C Chong [EMAIL PROTECTED] wrote in message
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I
I am working with a large administrative data (N=1,086) set for a
foster care agency. In short, I am comparing client outcomes across two
branches (each is delivering a different service model). For analyses, I
am using logistic regression (SPSS) where my dependent variables include
a variety of
Jon Cryer wrote:
David:
I have certainly never said nor implied that Excel
cannot
produce reasonably
good graphics. My concern is that it makes it so easy to produce
poor
graphics. The defaults are absurd and should never be used. It seems
to me that
defaults should produce at least something
Does anyone know if Quattro Pro suffers the same statistical problems as Excel?
Cheers. ECD
___
Edward C. Dreyer
Political Science
The University of Tulsa
=
Instructions
Thank you for helping me with my problem!
Janne
=
Instructions for joining and leaving this list, remarks about the
problem of INAPPROPRIATE MESSAGES, and archives are available at
http://jse.stat.ncsu.edu/
Thank you everybody who helped me with my correlation problem Stephen,
Art, Timothy, Patrick. It was very sweet of you.
Janne
=
Instructions for joining and leaving this list, remarks about the
problem of INAPPROPRIATE MESSAGES,
i don't know the answer to this but ... i have a general question with
regards to using spreadsheets for stat analysis
why? ... why do we not help our students and encourage our students to use
tools designed for a task ... rather than substituting something that may
just barely get us by?
i don't know the answer to this but ... i have a general question with
regards to using spreadsheets for stat analysis
Many students are computer illiterate and it might be easier to teach them how
to use the spreadsheet than a formal programming language.
most stat packages have nothing to do with programming anything ... you
either use simple commands to do things you want done (like in minitab ...
mtb correlation 'height' 'weight') or, select procedures from menus and
dialog boxes
At 12:27 AM 1/8/02 +, Kenmlin wrote:
i don't know the
there is a lot of packages that are half-way between spreadsheets and
formal programming languages: SAS, SPSS, Stata. anything is better than
spreadsheets.
On 8 Jan 2002, Kenmlin wrote:
i don't know the answer to this but ... i have a general question with
regards to using spreadsheets for
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Spreadsheets are fine for minor business/commercial data analysis. They are not
designed to be statistical packages. A package like
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