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A SECOND COURSE IN STATISTICS

REGRESSION ANALYISIS

Seventh Edition

William Mendenhall

University of Florida

Terry Sincich

University of South Florida

Prentice Hall

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Editor in Chief: Deirdre Lynch Acquisitions Editor: Marianne Stepanian Associate Content Editor: Dana Jones Bettez Senior Managing Editor: Karen Wernholm Associate Managing Editor: Tamela Ambush Senior Production Project Manager: Peggy McMahon Senior Design Supervisor: Andrea Nix Cover Design: Christina Gleason Interior Design: Tamara Newnam Marketing Manager: Alex Gay Marketing Assistant: Kathleen DeChavez Associate Media Producer: Jean Choe Senior Author Support/Technology Specialist: Joe Vetere Manufacturing Manager: Evelyn Beaton Senior Manufacturing Buyer: Carol Melville Production Coordination, Technical Illustrations, and Composition: Laserwords Maine Cover Photo Credit: Abstract green flow, ©Oriontrail/Shutterstock Many of the designations used by manufacturers and sellers to distinguish their products are claimed as trademarks. Where those designations appear in this book, and Pearson was aware of a trademark claim, the designations have been printed in initial caps or all caps.

Library of Congress Cataloging-in-Publication Data Mendenhall, William. A second course in statistics : regression analysis/ William Mendenhall, Terry Sincich –7th ed. p. cm. Includes index. ISBN 0-321-69169-5 1. Commercial statistics. 2. Statistics. 3. Regression analysis. I. Sincich, Terry, II. Title. HF1017.M46 2012 519.5 36–dc22 2010000433 Copyright © 2012, 2003, 1996 by Pearson Education, 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,...