Could this be a t-test, to compare two samples to see if they indeed come from the same (or as we conclude) different populations? This would test for the means of the populations from which the samples came. If so, then sample size is not an issue. It is a more sensitive test to use n(1) = n(2), but can be done in any case.
As for the variances of said samples, one could use an F test to check if the variances were indeed different. Again, unequal sample sizes are not an issue. That what you have in mind? Jay philipau wrote: > Hi > > Sorry if my question seem like a newbie question, but I'm dying to > know if it is statistically sound to compare the mean and standard > deviation of different sample sizes from a population. > > I know all about the central limit theorum, and how the average sample > mean will be normally distributed, but I don't know if it is useful to > compare parameters of different samples that I don't know if they are > independent or not > . > . > ================================================================= > Instructions for joining and leaving this list, remarks about the > problem of INAPPROPRIATE MESSAGES, and archives are available at: > . http://jse.stat.ncsu.edu/ . > ================================================================= -- Jay Warner Principal Scientist Warner Consulting, Inc. 4444 North Green Bay Road Racine, WI 53404-1216 USA Ph: (262) 634-9100 FAX: (262) 681-1133 email: [EMAIL PROTECTED] web: http://www.a2q.com The A2Q Method (tm) -- What do you want to improve today? . . ================================================================= Instructions for joining and leaving this list, remarks about the problem of INAPPROPRIATE MESSAGES, and archives are available at: . http://jse.stat.ncsu.edu/ . =================================================================
