, REGRESSION ANALYSIS
BY EXAMPLE USING R
Sixth Edition
Ali S. Hadi
The American University in Cairo
Samprit Chatterjee
New York University
ISTUDY
, Copyright © 2024 by John Wiley & Sons, Inc. All rights reserved.
Published by John Wiley & Sons, Inc., Hoboken, New Jersey.
Published simultaneously in Canada.
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, scanning, or otherwise, except as
permitted under Section 107 or 108 of the 1976 United States Copyright Act, without either the prior
written permission of the Publisher, or authorization through payment of the appropriate per-copy fee to
the Copyright Clearance Center, Inc., 222 Rosewood Drive, Danvers, MA 01923, (978) 750-8400, fax
(978) 750-4470, or on the web at www.copyright.com. Requests to the Publisher for permission should
be addressed to the Permissions Department, John Wiley & Sons, Inc., 111 River Street, Hoboken, NJ
07030, (201) 748-6011, fax (201) 748-6008, or online at http://www.wiley.com/go/permission.
Trademarks: Wiley and the Wiley logo are trademarks or registered trademarks of John Wiley & Sons,
Inc. and/or its affiliates in the United States and other countries and may not be used without written
permission. All other trademarks are the property of their respective owners. John Wiley & Sons, Inc. is
not associated with any product or vendor mentioned in this book.
Limit of Liability/Disclaimer of Warranty: While the publisher and author have used their best efforts in
preparing this book, they make no representations or warranties with respect to the accuracy or
completeness of the contents of this book and specifically disclaim any implied warranties of
merchantability or fitness for a particular purpose. No warranty may be created or extended by sales
representatives or written sales materials. The advice and strategies contained herein may not be suitable
for your situation. You should consult with a professional where appropriate. Further, readers should be
aware that websites listed in this work may have changed or disappeared between when this work was
written and when it is read. Neither the publisher nor authors shall be liable for any loss of profit or any
other commercial damages, including but not limited to special, incidental, consequential, or other
damages.
For general information on our other products and services or for technical support, please contact our
Customer Care Department within the United States at (800) 762-2974, outside the United States at (317)
572-3993 or fax (317) 572-4002.
Wiley also publishes its books in a variety of electronic formats. Some content that appears in print may
not be available in electronic formats. For more information about Wiley products, visit our web site at
www.wiley.com.
Library of Congress Cataloging-in-Publication Data applied for:
ISBN: 9781119830870 (HB); ePDF:9781119830887; epub: 9781119830894
Cover Design: Wiley
Cover Images: © Ali S. Hadi
Set in 11/13.5pt NimbusRomNo9L by Straive, Chennai, India
ISTUDY
, Dedicated to:
The memory of my parents – A. S. H.
Allegra, Martha, and Rima – S. C.
It’s a gift to be simple . . .
Old Shaker hymn
True knowledge is knowledge of why things are
as they are, and not merely what they are.
Isaiah Berlin
ISTUDY
BY EXAMPLE USING R
Sixth Edition
Ali S. Hadi
The American University in Cairo
Samprit Chatterjee
New York University
ISTUDY
, Copyright © 2024 by John Wiley & Sons, Inc. All rights reserved.
Published by John Wiley & Sons, Inc., Hoboken, New Jersey.
Published simultaneously in Canada.
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, scanning, or otherwise, except as
permitted under Section 107 or 108 of the 1976 United States Copyright Act, without either the prior
written permission of the Publisher, or authorization through payment of the appropriate per-copy fee to
the Copyright Clearance Center, Inc., 222 Rosewood Drive, Danvers, MA 01923, (978) 750-8400, fax
(978) 750-4470, or on the web at www.copyright.com. Requests to the Publisher for permission should
be addressed to the Permissions Department, John Wiley & Sons, Inc., 111 River Street, Hoboken, NJ
07030, (201) 748-6011, fax (201) 748-6008, or online at http://www.wiley.com/go/permission.
Trademarks: Wiley and the Wiley logo are trademarks or registered trademarks of John Wiley & Sons,
Inc. and/or its affiliates in the United States and other countries and may not be used without written
permission. All other trademarks are the property of their respective owners. John Wiley & Sons, Inc. is
not associated with any product or vendor mentioned in this book.
Limit of Liability/Disclaimer of Warranty: While the publisher and author have used their best efforts in
preparing this book, they make no representations or warranties with respect to the accuracy or
completeness of the contents of this book and specifically disclaim any implied warranties of
merchantability or fitness for a particular purpose. No warranty may be created or extended by sales
representatives or written sales materials. The advice and strategies contained herein may not be suitable
for your situation. You should consult with a professional where appropriate. Further, readers should be
aware that websites listed in this work may have changed or disappeared between when this work was
written and when it is read. Neither the publisher nor authors shall be liable for any loss of profit or any
other commercial damages, including but not limited to special, incidental, consequential, or other
damages.
For general information on our other products and services or for technical support, please contact our
Customer Care Department within the United States at (800) 762-2974, outside the United States at (317)
572-3993 or fax (317) 572-4002.
Wiley also publishes its books in a variety of electronic formats. Some content that appears in print may
not be available in electronic formats. For more information about Wiley products, visit our web site at
www.wiley.com.
Library of Congress Cataloging-in-Publication Data applied for:
ISBN: 9781119830870 (HB); ePDF:9781119830887; epub: 9781119830894
Cover Design: Wiley
Cover Images: © Ali S. Hadi
Set in 11/13.5pt NimbusRomNo9L by Straive, Chennai, India
ISTUDY
, Dedicated to:
The memory of my parents – A. S. H.
Allegra, Martha, and Rima – S. C.
It’s a gift to be simple . . .
Old Shaker hymn
True knowledge is knowledge of why things are
as they are, and not merely what they are.
Isaiah Berlin
ISTUDY
