It is really not too rare, a cell population about 0.04% to 0.15%, while the background is 0.01-0.05%. The problem is the variation among different measurements, presumably due to the systematic error. For example, I had 10e7 total cells and ran 2*10e5 out of them for two times: one time I got 0.04% and the other time I got 0.15%. In order to have smaller variation, obviously I have to increase my sample size, but the last thing I want to do is to run through all 10e7 cells. Can anyone give me a handy statistical method for estimating the sample size that makes a cost-effective compromise? Thank you very much. Hai Qi Dept. of Pathology, UTMB
This archive was generated by hypermail 2b29 : Wed Apr 03 2002 - 11:54:17 EST