Re: [computer-go] strange results

[Tom Cooper <t.cooper@xxxxxxxxxxxxxx>]

At 22:04 11/05/2005, you wrote:

> t.cooper wrote:
> >At 20:28 11/05/2005, David Doshay wrote
> >>Acceptable and high are relative to the person asking the question.
> >>We often will run a set of games and calculate a 95% confidence
> >>interval, and run another set of games where we get a 95% confidence
> >>interval that does not even overlap. Our solution is MORE GAMES.
>
> >On the face of it, this seems to contradict the rules of probability.  Is
> >there some reason why this might be happening, or at least why it is not
> >as strange as it at first seems?
>
> The reason is that we are NOT dealing with gaussian distributed random
> numbers but the results of (computer) games.
>
> Chrsitoph
Thanks for this answer.  When you say 'the results' do you mean the score in
points, or the proportion of wins?  I think there may be serious problems with
using the score in points.

Also, am I correct in deducing that when you say 95% confidence intervals,
you mean intervals determined by ~3 times the sample standard deviation
or maybe the square-root of the bias-corrected variance?

Thanks.



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