Published:
September 2018
Page Count:
426
ISBN (Digital):
978-1-4533-8895-2

# Introductory Statistics: A First Course

Version 2.0
By Douglas S. Shafer and Zhiyi Zhang

## Key Features

• Concise, streamlined approach
• Wide range of exercises for each concept to drive comprehension
• Customizable

### Students

Online Access Price:  \$35.95 Color Printed Textbook with Online Access Price:  \$60.95

### This textbook is suitable for the following courses: Introductory Statistics (one semester).

Introductory Statistics: A First Course provides a concise, coherent explanation of introductory statistics topics that caters to the needs of general education students in standard one-semester introductory courses. Introductory Statistics: A First Course ensures student comprehension by focusing on important core concepts and using a variety of exercises and examples to illustrate topics covered. As a result, Introductory Statistics: A First Course provides a low-cost, high-quality alternative to existing options on the market.

### New in This Version

• Improved presentation of the median and quartiles
• Simplified the condition that must be met for validity of statistical analyses of popular proportions

### Appendix A: Appendix

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### Douglas S. Shafer University of North Carolina - Charlotte

Douglas Shafer is Professor of Mathematics at the University of North Carolina at Charlotte. In addition to his position in Charlotte, he has held visiting positions at the University of Missouri at Columbia and Montana State University and a Senior Fulbright Fellowship in Belgium. He teaches a range of mathematics courses as well as introductory statistics. In addition to journal articles and this statistics textbook, he has co-authored a graduate-level textbook in his research specialty with V.G. Romanovski (Maribor, Slovenia). He earned a Ph.D. in mathematics at the University of North Carolina at Chapel Hill.

### Zhiyi Zhang University of North Carolina - Charlotte

Zhiyi Zhang is Professor of Mathematics at the University of North Carolina at Charlotte. In addition to his teaching and research duties at the university, he consults actively to industries and governments on a wide range of statistical issues. His research activities in statistics have been supported by the National Science Foundation, the U.S. Environmental Protection Agency, the Office of Naval Research, and the National Institute of Health. He earned a Ph.D. in statistics at Rutgers University in New Jersey.

• Changed 0.020 to 0.20 in Question 5(b) of the Basic Exercises in Chapter 5, Section 4 (9/14/20)
• Changed the "sigma/2" to "alpha/2" in two instances (once in Example 8 and once in Example 9) in Chapter 7, Section 4. Note this change appears in the online version of this book and in the PDF, but not in the eBook (10/28/20).
• Changed the "sigma/2" to "alpha/2" in the equation directly above Example 8 in Chapter 7, Section 4. Note this change appears in the online version of this book and in the PDF, but not in the eBook (12/2/20).
• Changed "15 Type A strips..." to "16 Type A strips..." and "20 Type B strips..." to "21 Type B strips..." in Example 6 in Chapter 11, Section 3. Note this change appears in the online version of this book and in the PDF, but not in the eBook (12/2/20)
• Changed "five categories" to "four categories" in Basic Exercises Question 1 in Chapter 11 Section 2 (12/17/20)
• Changed "Q_3=3800" to "Q_3=3050" in Question 9 Part (c) of Chapter 2 Section 4 (12/17/20)
• Changed "n=10" to "p=0.25" in Question 7 Part (a) of Chapter 4 Section 3 (12/17/20)
• Changed "n=957" to "n=975" in Question 10 Part (c) of Chapter 4 Section 3 (12/17/20)
• Changed "n=1750" to "p=0.79" in Question 10 Part (d) of Chapter 4 Section 3 (12/17/20)
• Changed "P(−4.22 < Z < −1.39)" to "P(−1.37 < Z < 5.11)." in Question 5 Part (b) of Chapter 5 Section 2 (12/17/20)
• Parts (b) and (c) of Question 1 in Chapter 5 Section 3 were switched (12/17/20)
• Added two values—"25" on the left and "20" on the right—to the bottom of the data set in Question 14 of Chapter 9 Section 2 (12/17/20)
• Changed the answer to Basic Exercises 5(b) in Chapter 5, Section 4 from 0.84 to 2.05 (2/10/21)
• Changed the "=" sign in the alternative hypothesis, "Ha: mu = 127.50," in Example 1 in Chapter 8, Section 1 to a ">" sign (2/10/21)
• Changed 2.235 to 2.325 in the Answer to Question 5(a) of the Basic Exercises in Chapter 8, Section 2 (4/21/21)
• Changed the null hypothesis from mu > 127.50 to mu = 127.50, and the altenrative hypothesis from mu = 127.50 to mu > 127.50, in Example 1 in Chapter 8, Section 1 (4/21/21)
• Deleted "(the 2.1 minutes pertains to the old drug, not the new one)" from Step 2 of Example 4 in Chapter 8, Section 2 (4/21/21)
• Changed "If sigma is known" to "If sigma is unknown" for T-statistic in Chapter 8, Section 4 (5/3/21)
• Changed 72.35 to 41.04 in answer to Question 11 of the Application Exercises in Chapter 11, Section 1 (5/3/21)