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Subject: Re: Number of games to test

Author: Frank Schneider

Date: 07:50:43 03/09/02

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On March 09, 2002 at 02:46:42, TEERAPONG TOVIRAT wrote:

>
>
>I see the correlation between  score ratio and the number of games
>at specific %  of confident interval.
>Would u please calculate this correlation for me?
>
>score          the number of games at 90% confident interval
>60%              ?
>70%              ?
>80%              ?
>90%              ?
>
>Thanks in advance,
>Teerapong

I'm sorry, I don't have the formulas here, just the table I computed
a while ago when I tried to apply the t-test to chess (I'm not sure
I did it correctly, though).
The number of games whoisbetter.exe computes are roughly two times
higher than my table. But note that whoisbetter.exe doesn't let you
specify a draw ratio and that my calculations were based on a draw
ratio of 25%.

Frank




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