(1) Mathematical Institute, Warsaw University of Technology, Plac Politechniki 1, 00-661 Warsaw, Poland (e-mail: wesolo@alpha.im.pw.edu.pl), PL
Abstract:
Let X1,X2,…,Xn be a random sample from a continuous distribution with the corresponding order statistics X1:n≤X2:n≤…≤Xn:n. All the distributions for which E(Xk+r: n|Xk:n)=aXk:n+b are identified, which solves the problem stated in Ferguson (1967). Received February 1998