Industrial Automatic Control Systems and Controllers Annotation << Back Modifi ed Graphical Criterion of Statistical Sampling Normality A.A. Moiseev Graphical normality criterion is considered as alternative one to traditional χ2 method. Its base advantage is the possibility to reduce studied sampling volume without conclusions reliability lowering. This method based on preliminary nonlinear transformation of Student’s fractions using function of Student’s distribution and posterior comparison of empirical distribution with coordinate angle bisectrix. Sign criterion was used as analytical method of their discrimination. Keywords: statistical sampling; normal distribution; χ2 method; graphical normality criterion; Students fractions; of Students distribution; empirical distribution; coordinate angle bisectrix; sign criterion. Contacts: E-mail: slow.coach@yandex.ru Pp. 28-30.