Might Donald be thinking of z scores in the context of hypothesis testing, that is, the position of a sample mean in a normally distributed sampling distribution?
Karl W. -----Original Message----- Hey, Donald, So far, I have to side with Dennis on this one. I've never thought twice about people scoring up <whatever they have> as z-scores, and calling them z-scores. And we never have population values, so we would never have z-scores, if that is what we were supposed to use. So I guess it seems to me to be "an unsupported assertion" that z-scores are "commonly defined in terms of population values." I will agree that for descriptive purposes, it is much nicer to have a very large N than a small one, but that's always been the case. [ snip, rest] -- Rich Ulrich, [EMAIL PROTECTED] http://www.pitt.edu/~wpilib/index.html "Taxes are the price we pay for civilization." Justice Holmes. . . . . ================================================================= Instructions for joining and leaving this list, remarks about the problem of INAPPROPRIATE MESSAGES, and archives are available at: . http://jse.stat.ncsu.edu/ . =================================================================
