This publication is designed to provide accurate and authoritative information in regard to the subject matter covered. It is sold with the understanding that the publisher is not engaged in rendering legal, accounting, or other professional service. If legal advice or other ex-pert assistance is required, the services of a competent professional person should be sought. Library of Congress Cataloging-in-Publication Data Larson, Alan. Six sigma demystified : a company-wide approach to continuous improvement / Alan Larson. p. cm. Includes bibliographical references and index. ISBN 0-8144-7184-6 1. Total quality management. 2. Six sigma (Quality control standard)