Student-t deviate corresponding to a given normal deviate
Brian L. Joiner · Journal of Research of the National Bureau of Standards Section C Engineering and Instrumentation · 1969
A table is given of th e t deviate that correspond s to a given normal deviate z in the sense that the probabilities Jutside the t value and outside th e z valu e are identical.This table enables those who are accustomed to expressing uncertainties in terms of 10', 20',30', or 40' limits to give statistically equivalent limits when the sta ndard deviation 0' is not known and consequ ently must be estimated from small samples.