Ludovic Duponchel wrote:
If x values have a normal distribution, is there a normal distribution
for x^2 ?
No. If the mean is 0, x^2 hasa chi-squared distribution with 1 DOF.
As the ratio mean/SD - infinity, the distribution of x^2 is
asymptotically normal.
-Robert Dawson
Stan Brown wrote:
On a quiz, I set the following problem to my statistics class:
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 medicine provided
relief for 170
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The
On 29 Nov 2001 07:03:13 -0800, [EMAIL PROTECTED] (Robert J.
MacG. Dawson) wrote:
There is probably a reverse trend in the extreme tail; people probably
overestimate the probability of getting (say) red fifty times in a row
at Roulette simply because we don't have a good feel for really large
In article [EMAIL PROTECTED],
Thom Baguley [EMAIL PROTECTED] wrote:
Donald Burrill wrote:
On Fri, 23 Nov 2001, L.C. wrote:
The question got me thinking about this problem as a
multiple comparison problem. Exam scores are typically
sums of problem scores. The problem scores may be
Hi, members:
Please, I am hoping to get some clarification on this problem:
In my University, (I work in Dental School, in Brazil),
a dentist brought to me your data:
Experimental Unit:
cilindrical shape of Titanium pure ( 72 samples): diameter: 4mmm; height:
5mm
submeted to Shear Test
SNORING-IS IT AFFECTING YOUR LIFE?
This product has been featured on National TV.
Does snoring keep you up at night?
Tired of having to sleep in separate rooms because of snoring?
Tired of hearing how your snoring kept someone up all night?
Just Tired of being tired because of someones
In article [EMAIL PROTECTED],
Ludovic Duponchel [EMAIL PROTECTED] wrote:
If x values have a normal distribution, is there a normal distribution
for x^2 ?
The only transformations one is likely to encounter which
preserve normality are linear.
--
This address is for information only. I do not
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:
On a quiz, I set the following problem to my statistics class:
The manufacturer of a patent medicine claims that it is 90%
effective(*) in
In article [EMAIL PROTECTED],
Robert J. MacG. Dawson [EMAIL PROTECTED] wrote:
Speaking of normal distributions and cancer clusters, does anybody (a)
agree with me that the human race in general has a better feel for the
normal distribution than the binomial distribution, and the Poisson is
still
Hi
On Thu, 29 Nov 2001, Stan Brown wrote:
But -- and in retrospect I should have seen it coming -- some
students framed the hypotheses so that the alternative hypothesis
was the drug is effective as claimed. They had
Ho: p = .9; Ha: p .9; p-value = .9908.
You might point out to
At 03:11 PM 11/30/01 -0200, Ivan Balducci wrote:
Hi, members:
Please, I am hoping to get some clarification on this problem:
In my University, (I work in Dental School, in Brazil),
a dentist brought to me your data:
Experimental Unit:
cilindrical shape of Titanium pure ( 72 samples): diameter:
On 30 Nov 2001 07:34:14 -0800, [EMAIL PROTECTED] (Carl Huberty)
wrote:
Need help. Would someone please give me a reference that
discusses a chance value of a canonical correlation coefficient
(or the square thereof). That is my question is: What is the
expected value of R when rho is
On Fri, 30 Nov 2001 10:14:36 -0500, Rich Ulrich [EMAIL PROTECTED]
wrote:
- whereas, by contrast, we scientists can right it out with
scientific notation with its powers of ten, and have something
concrete, not abstract, because it is additive in the exponents
or am I just making another
Sima [EMAIL PROTECTED] wrote:
: Dear List Members,
: I have missed some lectures on statistics due to heavy illness
: and now i got an assignment which i cannot solve.
We all feel sorry for you Sima, but perhaps you should talk to your
instructor about it. He undoubtedly has office hours.
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