INSTRUCTOR’S
SOLUTIONS MANUAL
JAMES LAPP
Colorado Mesa University
ELEMENTARY STATISTICS
USING EXCEL
SIXTH EDITION
Mario F. Triola
Dutchess Community College
,The author and publisher of this book have used their best efforts in preparing this book. These efforts include the
development, research, and testing of the theories and programs to determine their effectiveness. The author and
publisher make no warranty of any kind, expressed or implied, with regard to these programs or the documentation
contained in this book. The author and publisher shall not be liable in any event for incidental or consequential
damages in connection with, or arising out of, the furnishing, performance, or use of these programs.
Reproduced by Pearson from electronic files supplied by the author.
Copyright © 2018, 2014, 2010 Pearson Education, Inc.
Publishing as Pearson, 501 Boylston Street, Boston, MA 02116.
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, without the prior written
permission of the publisher. Printed in the United States of America.
ISBN-13: 978-0-13-450748-4
ISBN-10: 0-13-450748-
www.pearsonhighered.com
, CONTENTS
Chapter 1: Introduction To Statistics
Section 1-1: Statistical and Critical Thinking...................................................................1
Section 1-2: Types of Data ...............................................................................................3
Section 1-3: Collecting Sample Data................................................................................4
Section 1-4: Introduction to Excel ....................................................................................5
Chapter Quick Quiz ..........................................................................................................6
Review Exercises ..............................................................................................................6
Cumulative Review Exercises ..........................................................................................7
Chapter 2: Exploring Data with Tables and Graphs
Section 2-1: Frequency Distributions for Organizing and Summarizing Data.................9
Section 2-2: Histograms..................................................................................................14
Section 2-3: Graphs That Enlighten and Graphs That Deceive......................................16
Section 2-4: Scatterplots, Correlation, and Regression ..................................................19
Chapter Quick Quiz ........................................................................................................20
Review Exercises ............................................................................................................21
Cumulative Review Exercises ........................................................................................23
Chapter 3: Describing, Exploring, and Comparing Data
Section 3-1: Measures of Center.....................................................................................25
Section 3-2: Measures of Variation ................................................................................32
Section 3-3: Measures of Relative Standing and Boxplots.............................................39
Chapter Quick Quiz ........................................................................................................44
Review Exercises ............................................................................................................45
Cumulative Review Exercises ........................................................................................46
Chapter 4: Probability
Section 4-1: Basic Concepts of Probability ....................................................................49
Section 4-2: Addition Rule and Multiplication Rule ......................................................51
Section 4-3: Complements, Conditional Probability, and Bayes’ Theorem...................53
Section 4-4: Counting .....................................................................................................55
Chapter Quick Quiz ........................................................................................................58
Review Exercises ............................................................................................................59
Cumulative Review Exercises ........................................................................................60
Chapter 5: Discrete Probability Distributions
Section 5-1: Probability Distributions ............................................................................63
Section 5-2: Binomial Probability Distributions.............................................................65
Section 5-3: Poisson Probability Distributions ...............................................................69
Chapter Quick Quiz ........................................................................................................71
Review Exercises ............................................................................................................71
Cumulative Review Exercises ........................................................................................72
, Chapter 6: Normal Probability Distributions
Section 6-1: The Standard Normal Distribution .............................................................75
Section 6-2: Real Applications of Normal Distributions................................................78
Section 6-3: Sampling Distributions and Estimators ......................................................83
Section 6-4: The Central Limit Theorem........................................................................87
Section 6-5: Assessing Normality...................................................................................91
Section 6-6: Normal as Approximation to Binomial ......................................................95
Chapter Quick Quiz ........................................................................................................99
Review Exercises ............................................................................................................99
Cumulative Review Exercises ......................................................................................101
Chapter 7: Estimating Parameters and Determining Sample Sizes
Section 7-1: Estimating a Population Proportion..........................................................105
Section 7-2: Estimating a Population Mean..................................................................111
Section 7-3: Estimating a Population Standard Deviation or Variance........................116
Section 7-4: Bootstrapping: Using Excel for Estimates ...............................................120
Chapter Quick Quiz ......................................................................................................122
Review Exercises ..........................................................................................................123
Cumulative Review Exercises ......................................................................................124
Chapter 8: Hypothesis Testing
Section 8-1: Basics of Hypothesis Testing ...................................................................127
Section 8-2: Testing a Claim About a Proportion.........................................................129
Section 8-3: Testing a Claim About a Mean.................................................................137
Section 8-4: Testing a Claim About a Standard Deviation or Variance .......................144
Chapter Quick Quiz ......................................................................................................148
Review Exercises ..........................................................................................................149
Cumulative Review Exercises ......................................................................................151
Chapter 9: Chapter 9: Inferences from Two Samples
Section 9-1: Two Proportions .......................................................................................153
Section 9-2: Two Means: Independent Samples...........................................................167
Section 9-3: Two Dependent Samples (Matched Pairs) ...............................................178
Section 9-4: Two Variances or Standard Deviations....................................................186
Chapter Quick Quiz ......................................................................................................189
Review Exercises ..........................................................................................................190
Cumulative Review Exercises ......................................................................................192
Chapter 10: Correlation and Regression
Section 10-1: Correlation..............................................................................................197
Section 10-2: Regression ..............................................................................................210
Section 10-3: Prediction Intervals and Variation..........................................................223
Section 10-4: Multiple Regression................................................................................227
Section 10-5: Nonlinear Regression .............................................................................232
Chapter Quick Quiz ......................................................................................................237
Review Exercises ..........................................................................................................237
Cumulative Review Exercises ......................................................................................240
SOLUTIONS MANUAL
JAMES LAPP
Colorado Mesa University
ELEMENTARY STATISTICS
USING EXCEL
SIXTH EDITION
Mario F. Triola
Dutchess Community College
,The author and publisher of this book have used their best efforts in preparing this book. These efforts include the
development, research, and testing of the theories and programs to determine their effectiveness. The author and
publisher make no warranty of any kind, expressed or implied, with regard to these programs or the documentation
contained in this book. The author and publisher shall not be liable in any event for incidental or consequential
damages in connection with, or arising out of, the furnishing, performance, or use of these programs.
Reproduced by Pearson from electronic files supplied by the author.
Copyright © 2018, 2014, 2010 Pearson Education, Inc.
Publishing as Pearson, 501 Boylston Street, Boston, MA 02116.
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, without the prior written
permission of the publisher. Printed in the United States of America.
ISBN-13: 978-0-13-450748-4
ISBN-10: 0-13-450748-
www.pearsonhighered.com
, CONTENTS
Chapter 1: Introduction To Statistics
Section 1-1: Statistical and Critical Thinking...................................................................1
Section 1-2: Types of Data ...............................................................................................3
Section 1-3: Collecting Sample Data................................................................................4
Section 1-4: Introduction to Excel ....................................................................................5
Chapter Quick Quiz ..........................................................................................................6
Review Exercises ..............................................................................................................6
Cumulative Review Exercises ..........................................................................................7
Chapter 2: Exploring Data with Tables and Graphs
Section 2-1: Frequency Distributions for Organizing and Summarizing Data.................9
Section 2-2: Histograms..................................................................................................14
Section 2-3: Graphs That Enlighten and Graphs That Deceive......................................16
Section 2-4: Scatterplots, Correlation, and Regression ..................................................19
Chapter Quick Quiz ........................................................................................................20
Review Exercises ............................................................................................................21
Cumulative Review Exercises ........................................................................................23
Chapter 3: Describing, Exploring, and Comparing Data
Section 3-1: Measures of Center.....................................................................................25
Section 3-2: Measures of Variation ................................................................................32
Section 3-3: Measures of Relative Standing and Boxplots.............................................39
Chapter Quick Quiz ........................................................................................................44
Review Exercises ............................................................................................................45
Cumulative Review Exercises ........................................................................................46
Chapter 4: Probability
Section 4-1: Basic Concepts of Probability ....................................................................49
Section 4-2: Addition Rule and Multiplication Rule ......................................................51
Section 4-3: Complements, Conditional Probability, and Bayes’ Theorem...................53
Section 4-4: Counting .....................................................................................................55
Chapter Quick Quiz ........................................................................................................58
Review Exercises ............................................................................................................59
Cumulative Review Exercises ........................................................................................60
Chapter 5: Discrete Probability Distributions
Section 5-1: Probability Distributions ............................................................................63
Section 5-2: Binomial Probability Distributions.............................................................65
Section 5-3: Poisson Probability Distributions ...............................................................69
Chapter Quick Quiz ........................................................................................................71
Review Exercises ............................................................................................................71
Cumulative Review Exercises ........................................................................................72
, Chapter 6: Normal Probability Distributions
Section 6-1: The Standard Normal Distribution .............................................................75
Section 6-2: Real Applications of Normal Distributions................................................78
Section 6-3: Sampling Distributions and Estimators ......................................................83
Section 6-4: The Central Limit Theorem........................................................................87
Section 6-5: Assessing Normality...................................................................................91
Section 6-6: Normal as Approximation to Binomial ......................................................95
Chapter Quick Quiz ........................................................................................................99
Review Exercises ............................................................................................................99
Cumulative Review Exercises ......................................................................................101
Chapter 7: Estimating Parameters and Determining Sample Sizes
Section 7-1: Estimating a Population Proportion..........................................................105
Section 7-2: Estimating a Population Mean..................................................................111
Section 7-3: Estimating a Population Standard Deviation or Variance........................116
Section 7-4: Bootstrapping: Using Excel for Estimates ...............................................120
Chapter Quick Quiz ......................................................................................................122
Review Exercises ..........................................................................................................123
Cumulative Review Exercises ......................................................................................124
Chapter 8: Hypothesis Testing
Section 8-1: Basics of Hypothesis Testing ...................................................................127
Section 8-2: Testing a Claim About a Proportion.........................................................129
Section 8-3: Testing a Claim About a Mean.................................................................137
Section 8-4: Testing a Claim About a Standard Deviation or Variance .......................144
Chapter Quick Quiz ......................................................................................................148
Review Exercises ..........................................................................................................149
Cumulative Review Exercises ......................................................................................151
Chapter 9: Chapter 9: Inferences from Two Samples
Section 9-1: Two Proportions .......................................................................................153
Section 9-2: Two Means: Independent Samples...........................................................167
Section 9-3: Two Dependent Samples (Matched Pairs) ...............................................178
Section 9-4: Two Variances or Standard Deviations....................................................186
Chapter Quick Quiz ......................................................................................................189
Review Exercises ..........................................................................................................190
Cumulative Review Exercises ......................................................................................192
Chapter 10: Correlation and Regression
Section 10-1: Correlation..............................................................................................197
Section 10-2: Regression ..............................................................................................210
Section 10-3: Prediction Intervals and Variation..........................................................223
Section 10-4: Multiple Regression................................................................................227
Section 10-5: Nonlinear Regression .............................................................................232
Chapter Quick Quiz ......................................................................................................237
Review Exercises ..........................................................................................................237
Cumulative Review Exercises ......................................................................................240
