Table of Contents
PART I. EXPLORING AND COLLECTING DATA
1. Statistics and Variation
1.1 So, What Is Statistics?
1.2 How Will This Book Help?
2. Data
Amazon.com
2.1 What Are Data?
2.2 Variable Types
2.3 Data Sources: Where, How, and When
Ethics in Action
Technology Help
Brief Cases: Credit Card Bank
3. Surveys and Sampling
Roper Polls
3.1 Three Ideas of Sampling
3.2 Populations and Parameters
3.3 Other Sample Designs
3.4 The Valid Survey
3.5 How to Sample Badly
Ethics in Action
Technology Help: Random Sampling
Brief Cases: Market Survey Research
The GfK Roper Reports Worldwide Survey
4. Displaying and Describing Categorical Data
Keen
4.1 Summarizing a Categorical Variable
4.2 Displaying a Categorical Variable
4.3 Exploring Two Categorical Variables: Contingency Tables
Ethics in Action
Technology Help: Displaying Categorical Data on the Computer
Brief Cases: KEEN
5. Displaying and Describing Quantitative Data
AIG
5.1 Displaying Quantitative Variables
5.2 Shape
5.3 Center
5.4 Spread of the Distribution
5.5 Shape, Center, and Spread-A Summary
5.6 Five-Number Summary and Boxplots
5.7 Comparing Groups
5.8 Identifying Outliers
5.9 Standardizing
*5.10 Time Series Plots
*5.11 Transforming Skewed Data
Ethics in Action
Technology Help: Displaying and Summarizing
Quantitative Variables
Brief Cases Hotel Occupancy Rates 122
Value and Growth Stock Returns 122
6. Correlation and Linear Regression
Lowe's
6.1 Looking at Scatterplots
6.2 Assigning Roles to Variables in Scatterplots
6.3 Understanding Correlation
6.4 Lurking Variables and Causation
6.5 The Linear Model
6.6 Correlation and the Line
6.7 Regression to the Mean
6.8 Checking the Model
6.9 Variation in the Model and R2
6.10 Reality Check: Is the Regression Reasonable?
6.11 Non-linear Relationships
Ethics in Action
Technology Help: Correlation and Regression
Brie