# Statistics Companion: Support for Introductory Statistics 1st edition

Roxy Peck and Tom Short
Publisher: Cengage Learning

## Course Packs

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## Textbook Resources

Additional instructional and learning resources are available with the textbook, and might include testbanks, slide presentations, online simulations, videos, and documents.

• College Success Toolkit
• Math Mindset
• Peck Statistics Companion 1e

Access is contingent on use of this textbook in the instructor's classroom.

• Chapter 0: Smart Study Strategies
• 0.1: The Learning and Memory Process
• 0.2: The Study Plan for Statistics
• 0.3: Productive Self-Concept Through Mindfulness
• 0.4: Putting It All Together

• Chapter 1: Getting Ready for Statistics
• 1.1: Numbers and the Number Line—A Quick Review (25)
• 1.2: Rounding Decimal Numbers (11)
• 1.3: Ordering Decimal Numbers (12)
• 1.4: Getting to Know Your Calculator—Order of Operations, Powers of Numbers, Square Roots, and Scientific Notation (24)

• Chapter 2: Creating Graphical Displays—The Math You Need to Know
• 2.1: Review—Rounding Decimal Numbers, Plotting Points on the Number Line (4)
• 2.2: Selecting an Appropriate Numerical Scale (14)
• 2.3: Intervals and Interval Widths (9)
• 2.4: Proportions, Decimal Numbers, and Percentages (13)
• 2.5: Plotting Points in Two Dimensions (14)
• 2.6: Evaluating Expressions (10)

• Chapter 3: Measures of Center and Variability—The Math You Need to Know
• 3.1: Review—Ordering Decimal Numbers, Square Roots, Distance between Two Points (14)
• 3.2: Variables and Algebraic Expressions (12)
• 3.3: Summation Notation (5)
• 3.4: Deviations from the Mean, Squared Deviations, Sum of Squared Deviations (5)
• 3.5: Evaluating Expressions (10)

• Chapter 4: Describing Bivariate Numerical Data—The Math You Need to Know
• 4.1: Review—Variables, Scatterplots, Linear and Nonlinear Patterns, z-Scores (18)
• 4.2: Working with Lines (28)
• 4.3: Linear Models and Using a Line to Make Predictions (14)
• 4.4: Deviations from a Line and the Sum of Squared Deviations (5)
• 4.5: The Least-Squares Line (1)
• 4.6: Evaluating Expressions (5)

• Chapter 5: Probability—The Math You Need to Know
• 5.1: Review—Proportions, Decimal Numbers and Percentages, Ordering Decimal Numbers (8)
• 5.2: Sets and Set Notation (10)
• 5.3: Evaluating Expressions (3)

• Chapter 6: Random Variables and Probability Distributions—The Math You Need to Know
• 6.1: Review—Powers of Numbers, Square Roots, Intervals, Proportions, Decimals, Percentages, and z-Scores (14)
• 6.2: Random Variables (4)
• 6.3: More on Intervals (9)
• 6.4: Equations and Inequalities (17)
• 6.5: Areas Under a Curve (12)
• 6.6: Areas of Rectangles and Areas of Triangles (5)
• 6.7: Solving Simple Equations in One Variable (4)
• 6.8: Working with Factorials (Optional, for those covering the Binomial Distribution) (8)
• 6.9: Evaluating Expressions (4)

• Chapter MA: Midsemester Assessment
• MA: Midsemester Assessment (20)

• Chapter 7: How to Read a Statistics Problem
• 7.1: Chapter Overview
• 7.2: A Strategy for Reading a Statistics Problem
• 7.3: Guided Practice—Reading Statistics Problems
• 7.4: On Your Own (5)

• Chapter 8: Estimating a Population Proportion—The Math You Know
• 8.1: Evaluating Expressions (9)
• 8.2: Guided Practice—Margin of Error (3)
• 8.3: Guided Practice—Large-Sample Confidence Interval for a Population Proportion (2)
• 8.4: Guided Practice—Determining Sample Size (2)

• Chapter 9: Testing Hypotheses About a Population Proportion—The Math You Need to Know
• 9.1: Evaluating Expressions (3)
• 9.2: Guided Practice—Large-Sample Hypothesis Test for a Population Proportion (3)

• Chapter 10: Estimating a Difference in Two Proportions—The Math You Need to Know
• 10.1: Evaluating Expressions (3)
• 10.2: Guided Practice—Large-Sample Confidence Interval for a Difference in Two Proportions (3)

• Chapter 11: Testing Hypotheses About a Difference in Two Proportions—The Math You Need to Know
• 11.1: Evaluating Expressions (3)
• 11.2: Guided Practice—Large-Sample Hypothesis Test for a Difference in Two Proportions (3)

• Chapter 12: Estimating a Population Mean—The Math You Need to Know
• 12.1: Evaluating Expressions (3)
• 12.2: Guided Practice—Margin of Error (3)
• 12.3: Guided Practice—Confidence Interval for a Population Mean (3)
• 12.4: Guided Practice—Determining Sample Size (3)

• Chapter 13: Testing Hypotheses About a Population Mean—The Math You Need to Know
• 13.1: Evaluating Expressions (3)
• 13.2: Guided Practice—One-Sample Hypothesis Test for a Population Mean (3)

• Chapter 14: Estimating a Difference in Means Using Paired Samples—The Math You Need to Know
• 14.1: Evaluating Expressions (3)
• 14.2: Guided Practice—Confidence Interval for a Difference in Means—Paired Samples (3)

• Chapter 15: Testing Hypotheses About a Difference in Means Using Paired Samples—The Math You Need to Know
• 15.1: Evaluating Expressions (3)
• 15.2: Guided Practice—Paired-Samples Hypothesis Test for a Difference in Means (3)

• Chapter 16: Estimating a Difference in Two Means Using Independent Samples—The Math You Need to Know
• 16.1: Evaluating Expressions (3)
• 16.2: Guided Practice—Two-Sample t Confidence Interval for a Difference in Means Using Independent Samples (3)

• Chapter 17: Testing Hypotheses About a Difference in Two Means Using Independent Samples—The Math You Need to Know
• 17.1: Evaluating Expressions (3)
• 17.2: Guided Practice—Testing Hypotheses About a Difference in Means Using Independent Samples (3)

• Chapter 18: Chi-Square Tests—The Math You Need to Know
• 18.1: Evaluating Expressions (3)
• 18.2: Guided Practice—Chi-Square Tests (4)

• Chapter 19: Estimating and Testing Hypotheses About the Slope of a Population Regression Line—The Math You Need to Know
• 19.1: Evaluating Expressions (3)
• 19.2: Guided Practice—Confidence Interval for the Slope of a Population Regression Line (3)
• 19.3: Guided Practice—Testing Hypotheses About the Slope of a Population Regression Line (3)

• Chapter 20: Testing Hypotheses About More than Two Means—The Math You Need to Know
• 20.1: Evaluating Expressions (3)
• 20.2: Guided Practice—One-Way Analysis of Variance (3)

Statistics Companion: Support For Introductory Statistics by Roxy Peck and Tom Short provides students with the support they need for developing statistical thinking and conceptual understanding of Statistics by diving into tactics for reading and understanding Statistics problems in context, supportive mathematics preparation, and study skills, and by fostering a productive mindset. Statistics Companion can be used with any Introductory Statistics textbook or resource. The WebAssign component for this text engages students with immediate feedback, an interactive eBook with online resources, question banks of end-of-section exercises, and a Midsemester Assessment to gauge student understanding of the foundational math skills covered in the first half of the textbook.

Features
• Read It links under each question quickly jump to the corresponding section of a complete, interactive eBook that lets students highlight and take notes as they read.
• Watch It links provide step-by-step instruction with short, engaging videos that are ideal for visual learners.
• Master It Tutorials (MI) – New for Spring 2021! show students how to solve a similar problem in multiple steps by providing direction along with derivation, so the student understands the concepts and reasoning behind the problem solving.
• Course Packs with ready-to-use assignments built by subject matter experts specifically for this textbook. They are designed to save you time, and can be easily customized to meet your teaching goals.
• The Midsemester Assessment (MA) allows instructors to evaluate students' understanding of the foundational math skills covered in Chapters 1-6 of the textbook.

## Questions Available within WebAssign

Most questions from this textbook are available in WebAssign. The online questions are identical to the textbook questions except for minor wording changes necessary for Web use. Whenever possible, variables, numbers, or words have been randomized so that each student receives a unique version of the question. This list is updated nightly.

##### Question Group Key
MA - Midsemester Assessment
MI - Master It
MI.SA - Stand Alone Master It

##### Question Availability Color Key
BLACK questions are available now
GRAY questions are under development

Group Quantity Questions
Chapter MA: Midsemester Assessment
MA.1 20 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015 016 017 018 019 020
Chapter 1: Getting Ready for Statistics
1.E 72 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015 016 017 018 019 020 021 022 023 024 025 026 027 028.MI 028.MI.SA 029 030 031 032 033 034 035 036 037 038 039.MI 039.MI.SA 040 041.MI 041.MI.SA 042 043 044 045 046 047 048 049 050 051 052 053 054 055.MI 055.MI.SA 056.MI 056.MI.SA 057.MI 057.MI.SA 058 059 060 061 062.MI 062.MI.SA 063 064 065
Chapter 2: Creating Graphical Displays—The Math You Need to Know
2.E 64 001 002 003 004 005 006 007.MI 007.MI.SA 008 009.MI 009.MI.SA 010 011 012 013 014 015 016 017 018 019 020 021.MI 021.MI.SA 022 023 024 025 026 027 028 029.MI 029.MI.SA 030 031 032 033 034 035 036 037 038 039 040.MI 040.MI.SA 041 042 043 044.MI 044.MI.SA 045 046 047 048 049.MI 049.MI.SA 050 051 052 053 054 055 056 057
Chapter 3: Measures of Center and Variability—The Math You Need to Know
3.E 46 001 002.MI 002.MI.SA 003 004.MI 004.MI.SA 005 006 007 008 009 010 011 012 013 014 015 016 017 018 019 020 021 022 023 024 025.MI 025.MI.SA 026 027 028 029 030.MI 030.MI.SA 031 032 033 034.MI 034.MI.SA 035.MI 035.MI.SA 036 037 038 039 040
Chapter 4: Describing Bivariate Numerical Data—The Math You Need to Know
4.E 71 001 002 003 004.MI 004.MI.SA 005 006 007 008 009 010 011 012 013 014 015.MI 015.MI.SA 016 017 018 019 020 021.MI 021.MI.SA 022 023 024 025 026 027 028 029 030 031 032 033 034 035.MI 035.MI.SA 036 037 038.MI 038.MI.SA 039 040 041 042 043 044 045 046 047 048 049.MI 049.MI.SA 050.MI 050.MI.SA 051 052 053 054.MI 054.MI.SA 055 056.MI 056.MI.SA 057 058 059.MI 059.MI.SA 060 061
Chapter 5: Probability—The Math You Need to Know
5.E 21 001 002 003 004.MI 004.MI.SA 005 006 007 008 009.MI 009.MI.SA 010 011 012 013 014 015 016 017 018 019
Chapter 6: Random Variables and Probability Distributions—The Math You Need to Know
6.E 77 001 002 003 004 005 006 007 008.MI 008.MI.SA 009 010 011 012 013 014 015 016 017 018 019 020 021 022 023.MI 023.MI.SA 024.MI 024.MI.SA 025 026 027 028 029.MI 029.MI.SA 030 031 032.MI 032.MI.SA 033.MI 033.MI.SA 034 035 036 037 038 039 040 041.MI 041.MI.SA 042 043.MI 043.MI.SA 044 045 046.MI 046.MI.SA 047 048 049.MI 049.MI.SA 050 051 052 053.MI 053.MI.SA 054 055 056 057 058.MI 058.MI.SA 059 060 061 062 063 064 065
Chapter 7: How to Read a Statistics Problem
7.E 5 001.MI 001.MI.SA 002 003 004
Chapter 8: Estimating a Population Proportion—The Math You Know
8.E 16 001.MI 001.MI.SA 002 003 004.MI 004.MI.SA 005 006.MI 006.MI.SA 007 008.MI 008.MI.SA 009 010 011 012
Chapter 9: Testing Hypotheses About a Population Proportion—The Math You Need to Know
9.E 6 001.MI 001.MI.SA 002 003 004.MI 004.MI.SA
Chapter 10: Estimating a Difference in Two Proportions—The Math You Need to Know
10.E 6 001.MI 001.MI.SA 002 003.MI 003.MI.SA 004
Chapter 11: Testing Hypotheses About a Difference in Two Proportions—The Math You Need to Know
11.E 6 001.MI 001.MI.SA 002 003 004.MI 004.MI.SA
Chapter 12: Estimating a Population Mean—The Math You Need to Know
12.E 12 001.MI 001.MI.SA 002 003 004.MI 004.MI.SA 005.MI 005.MI.SA 006 007 008.MI 008.MI.SA
Chapter 13: Testing Hypotheses About a Population Mean—The Math You Need to Know
13.E 6 001.MI 001.MI.SA 002 003.MI 003.MI.SA 004
Chapter 14: Estimating a Difference in Means Using Paired Samples—The Math You Need to Know
14.E 6 001.MI 001.MI.SA 002 003.MI 003.MI.SA 004
Chapter 15: Testing Hypotheses About a Difference in Means Using Paired Samples—The Math You Need to Know
15.E 6 001.MI 001.MI.SA 002 003.MI 003.MI.SA 004
Chapter 16: Estimating a Difference in Two Means Using Independent Samples—The Math You Need to Know
16.E 6 001.MI 001.MI.SA 002 003.MI 003.MI.SA 004
Chapter 17: Testing Hypotheses About a Difference in Two Means Using Independent Samples—The Math You Need to Know
17.E 6 001.MI 001.MI.SA 002 003.MI 003.MI.SA 004
Chapter 18: Chi-Square Tests—The Math You Need to Know
18.E 7 001.MI 001.MI.SA 002 003 004.MI 004.MI.SA 005
Chapter 19: Estimating and Testing Hypotheses About the Slope of a Population Regression Line—The Math You Need to Know
19.E 9 001.MI 001.MI.SA 002 003.MI 003.MI.SA 004 005.MI 005.MI.SA 006
Chapter 20: Testing Hypotheses About More than Two Means—The Math You Need to Know
20.E 6 001.MI 001.MI.SA 002 003.MI 003.MI.SA 004
Total 474