Art Kendall wrote:
>
> would someone name some physical or social phenomena where the measurements
> follow a Cauchy distribution?
>
Here's a fairly simple situation.
Join two laser pointers back to back, and mount them on
some freely rotating assembly (like a roulette wheel or
something simi
Chuck Cleland wrote:
>
> Hello:
> If I understand the concept correctly, a consistent statistic is one
> whose value approaches the population value as the sample size
> increases. I am looking for examples of statistics that are _not_
> consistent. The best examples would
Rich Ulrich wrote:
> On Thu, 07 Sep 2000 02:20:27 GMT, Thomas Gatliffe
> <[EMAIL PROTECTED]> wrote:
>
> > Rich Ulrich wrote:
> >
> > > An example in English: I think this underlies the delicacy needed in
> > > the control of a nuclear power plant (in the most common U.S. design).
>
> > Actuall
Rich Ulrich wrote:
>
> On Thu, 07 Sep 2000 02:20:27 GMT, Thomas Gatliffe
> <[EMAIL PROTECTED]> wrote:
>
> > Rich Ulrich wrote:
> >
> > > An example in English: I think this underlies the delicacy needed in
> > > the control of a nuclear power plant (in the most common U.S. design).
>
> > Actua
On Thu, 07 Sep 2000 02:20:27 GMT, Thomas Gatliffe
<[EMAIL PROTECTED]> wrote:
> Rich Ulrich wrote:
>
> > An example in English: I think this underlies the delicacy needed in
> > the control of a nuclear power plant (in the most common U.S. design).
> Actually, once a power reactor has been brou
Gautam Sethi wrote:
>
> Robert J. MacG. Dawson <[EMAIL PROTECTED]> wrote:
>
> : dennis roberts wrote:
> :>
> :> i would say that what bob has indicated below is BIAS ... not consistency
>
> : Of course it's bias... but bias *does* imply inconsistency. It's a
> : simple implication bet
Rich Ulrich wrote:
> An example in English: I think this underlies the delicacy needed in
> the control of a nuclear power plant (in the most common U.S. design).
Actually, once a power reactor has been brought slowly but correctly into the
normal operating condition, it doesn't really require
least squres estimate
of b using the mismeasured data x* is biased and inconsistent.
"Robert J. MacG. Dawson" <[EMAIL PROTECTED]> wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
>
>
> Chuck Cleland wrote:
> >
> > Hello:
> > If I understa
it`s unbiased stat)
I think any audience can get it :)
On Wed, 6 Sep 2000, Chuck Cleland wrote:
> Hello:
> If I understand the concept correctly, a consistent statistic is one
> whose value approaches the population value as the sample size
> increases. I am looking for examples of st
Robert J. MacG. Dawson <[EMAIL PROTECTED]> wrote:
: dennis roberts wrote:
:>
:> i would say that what bob has indicated below is BIAS ... not consistency
: Of course it's bias... but bias *does* imply inconsistency. It's a
: simple implication between two important concepts, so makes a
On Wed, 06 Sep 2000 11:32:54 -0400, Art Kendall
<[EMAIL PROTECTED]> wrote:
> would someone name some physical or social phenomena where the measurements
> follow a Cauchy distribution?
>
> "Anon." wrote:
>
< snip, re: "not consistent" estimators >
> > How about the universal counterexample, the
Art Kendall wrote:
>
> would someone name some physical or social phenomena where the measurements
> follow a Cauchy distribution?
Put a laser pointer on the axis of a roulette wheel and spin it. The
position of the light-spot on the wall will be Cauchy distributed.
-Robert Da
would someone name some physical or social phenomena where the measurements
follow a Cauchy distribution?
"Anon." wrote:
> Chuck Cleland wrote:
> >
> > Hello:
> > If I understand the concept correctly, a consistent statistic is one
> > whose value approach
In article <[EMAIL PROTECTED]>, Art Kendall
<[EMAIL PROTECTED]> wrote:
#would someone name some physical or social phenomena where the measurements
#follow a Cauchy distribution?
Set up an infinite linear detector along the x-axis. This detector can
detect the position of an incoming photon. Let
dennis roberts wrote:
>
> i would say that what bob has indicated below is BIAS ... not consistency
Of course it's bias... but bias *does* imply inconsistency. It's a
simple implication between two important concepts, so makes a good point
to mention.
-Robert Dawson
==
i would say that what bob has indicated below is BIAS ... not consistency
...
At 12:18 PM 9/6/00 -0300, Robert J. MacG. Dawson wrote:
> More seriously, using the sample median as a robust estimator of the
>population mean is consistent if the population is symmetric, but
>inconsistent
Chuck Cleland wrote:
>
> Hello:
> If I understand the concept correctly, a consistent statistic is one
> whose value approaches the population value as the sample size
> increases. I am looking for examples of statistics that are _not_
> consistent. The best examples would
Chuck Cleland wrote:
>
> Hello:
> If I understand the concept correctly, a consistent statistic is one
> whose value approaches the population value as the sample size
> increases. I am looking for examples of statistics that are _not_
> consistent. The best examples w
Hello:
If I understand the concept correctly, a consistent statistic is one
whose value approaches the population value as the sample size
increases. I am looking for examples of statistics that are _not_
consistent. The best examples would be statistics that are not
computationally complex
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