Some Percentage Points of the Non-Central t-Distribution

Abstract

Percentage points x such that P {t/√f > x} = ∈ where t has the non-central t-distribution with f degree of freedom and non-centrality parameter √f+1K_p (K_p is the standard normal deviate exceeded with probability p) are tabulated for ∈ = .975, .025; p = .2500, .1500, .1000, .0650, .0400, .0250, .0100, .0040, .0025, .0010; f = 2 (1) 24 (5) 49. This supplements the tables on pp. 383–9 of Resnikoff, George J., and Lieberman, Gerald J., Tables of the Non-Central t-Distribution, Stanford, Stanford University Press (1957).