TESTS OF SIGNIFICANCE FOR SAMPLES OF THE x2‐POPULATION WITH TWO DEGREES OF FREEDOM

A statistical technique called the technique of “interval” analysis developed for samples drawn at random from the exponential population. It is shown that the tests of interval analysis are perfectly analogous to those of Analysis of Variance tests for the normal law variation. It is emphctsized that the published tables of Χ 2 , t and z (Fisher (5)) can be used to obtain the 5 and 1 per cent levels of significance for the corresponding tests of the Exponential Theory with appropriate modifications in respect of degrees of freedom.