The Book of Statistical Process Control Second Edition ZONTEC The Book of Statistical Process Control Second Edition ZONTEC The Zontec Press Cincinnati ComplimentaryZonteceBook·www.zontec-spc.com ZONTEC Copyright 2002-2010 Zontec Inc. All rights reserved No part of this publication may be reproduced, stored in a retrieval system or transmitted in any form or by any means electronic, mechanical, photocopying, recording or otherwise,withoutthepriorwrittenpermissionofthepublisher. Published by The Zontec Press 1389 Kemper Meadow Drive Cincinnati, OH 45240 www.zontec-spc.com The sponsoring editor for this book was Warren T. Ha; the editing supervi- sor and production manager was Richard K. Morris. Cover art production by Jean Green, Toledo, Ohio. Many of the charts in this publication were created with Zontec's Synergy 2000TM and Synergy 3000TM statistical process control software. Library of Congress Control Number: 2002105114 Printed in the USA Second Edition ISBN978-0-9720994-1-7 53495 9780972"099417 We dedicate this book to our customers who have contributed to our success in the software industry and supported us across more than two-and-a-half decades of computer technology advancements.