Published online by Cambridge University Press: 24 October 2008
Introduction and summary: In the distribution of the sum of n random variables
for which we suppose , the tail probability will be called an extreme tail probability if the normal approximation
is poor, when is asymptotically normal and n is large. This paper concerns the specialization of (1.1) in which
with a random permutation of nλ ones and n − nλ zeros, that is, in which T is the total for a simple random sample from the population with sampling fraction λ. In this case, we will always write T as Tλ. For brevity, we may write {c1,…, cn} for .