R help - Sep 2011 - Signify level of significance

Im doing test on my sample using 1-sample Kolmogorov-smirnov test(poisson
distribution) to specify my sample obtain avalanche effect. before i can
compare my D value with the critical value(Dn, alpha), i have to specify
which level of significance to use (eg. alpha = 0.01, 0.05, etc) and i don't
understand, why is it related to the probability that the hypothesis will be
rejected when it is in fact true. please anyone help me....

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On Sep 7, 2011, at 3:02 AM, goong001 wrote:
> Im doing test on my sample using 1-sample Kolmogorov-smirnov  
> test(poisson
> distribution) to specify my sample obtain avalanche effect. before i  
> can
> compare my D value with the critical value(Dn, alpha), i have to  
> specify
> which level of significance to use (eg. alpha = 0.01, 0.05, etc) and  
> i don't
> understand, why is it related to the probability that the hypothesis  
> will be
> rejected when it is in fact true. please anyone help me....
This is not a statistics tutoring mailing list. (And this has no  
intrinsic connection with R programming.) You should try other sites,  
perhaps stats.stackexchange.com , to address your basic statistics  
question.

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David Winsemius, MD
West Hartford, CT