چكيده لاتين :
Let Xl,...,X n be a random sample from a distribution with sample mean X and sample
variance_S 2
• In this paper we consider certain very general properties of the so-called "Z-scores"
(Xi - X)/S : i = 1,...., n. A representation theorem is then given for Z-scores obtained from an underlying
normal population, together with a theorem for their limiting distribution as the sample size tends to infinity.
Finally, two applications involving grading and testing for an outlier are presented
