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Re: Chronic Low-Level Radiation Exposure Causes Chromosomal Aberr ations



In a message dated 12/19/2001 11:38:26 AM Eastern Standard Time, Jack_Earley@RL.GOV writes:


I seem to recall needing a minimum of 30 before the data are
significant


This applies to the normal distribution.  For a few observations my guess is that the Poisson distribution would be useful, or other non-parametric statistics could be used.  I have not looked at the data.  Just commenting on the 'more than 30' value.


John Andrews
Knoxville, Tennessee