The modern theory of Sequential Analysis came into existence
simultaneously in the United States and Great Britain in response
to demands for more efficient sampling inspection procedures during
World War II. The develop ments were admirably summarized by their
principal architect, A. Wald, in his book Sequential Analysis
(1947). In spite of the extraordinary accomplishments of this
period, there remained some dissatisfaction with the sequential
probability ratio test and Wald's analysis of it. (i) The
open-ended continuation region with the concomitant possibility of
taking an arbitrarily large number of observations seems intol
erable in practice. (ii) Wald's elegant approximations based on
"neglecting the excess" of the log likelihood ratio over the
stopping boundaries are not especially accurate and do not allow
one to study the effect oftaking observa tions in groups rather
than one at a time. (iii) The beautiful optimality property of the
sequential probability ratio test applies only to the artificial
problem of testing a simple hypothesis against a simple
alternative. In response to these issues and to new motivation from
the direction of controlled clinical trials numerous modifications
of the sequential probability ratio test were proposed and their
properties studied-often by simulation or lengthy numerical
computation. (A notable exception is Anderson, 1960; see III.7.) In
the past decade it has become possible to give a more complete
theoretical analysis of many of the proposals and hence to
understand them better."
General
Is the information for this product incomplete, wrong or inappropriate?
Let us know about it.
Does this product have an incorrect or missing image?
Send us a new image.
Is this product missing categories?
Add more categories.
Review This Product
No reviews yet - be the first to create one!
Welcome to Loot.co.za!
Sign in / Register |Wishlists & Gift Vouchers |Help | Advanced search
