Student Solutions Manual for Business Statistics

Brief Contents

PART I: EXPLORING AND COLLECTING DATA

1. Data and Decisions (H&M)
2. Visualizing and Describing Categorical Data (Dalia Research)
3. Describing, Displaying, and Visualizing Quantitative Data (AIG)
4. Correlation and Linear Regression (Zillow.com)

PART II: MODELING AND PROBABILITY

5. Randomness and Probability (Credit Reports, the Fair Isaacs Corporation, and Equifax)
6. Random Variables and Probability Models (Metropolitan Life Insurance Company)
7. The Normal and Other Continuous Distributions (The NYSE)

PART III: GATHERING DATA

8. Data Sources: Observational Studies and Surveys (Roper Polls)
9. Data Sources: Experiments (Capital One)

PART IV: INFERENCE FOR DECISION MAKING

10. Sampling Distributions and Confidence Intervals for Proportions (Marketing Credit Cards: The MBNA Story)
11. Confidence Intervals for Means (Guinness & Co.)
12. Testing Hypotheses (Casting Ingots)
13. More About Tests and Intervals (Traveler’s Insurance)
14. Comparing Two Means (Visa Global Organization)
15. Inference for Counts: Chi-Square Tests (SAC Capital)

PART V: MODELS FOR DECISION MAKING

16. Inference for Regression (Nambé Mills)
17. Understanding Residuals (Kellogg’s)
18. Multiple Regression (Zillow.com)
19. Building Multiple Regression Models (Bolliger and Mabillard)
20. Time Series Analysis (Whole Foods Market^®)

PART VI: ANALYTICS

21. Introduction to Big Data and Data Mining (Paralyzed Veterans of America)

PART VII: ONLINE TOPICS

22. Quality Control (Sony)
23. Nonparametric Methods (i4cp)
24. Decision Making and Risk (Data Description, Inc.)
25. Analysis of Experiments and Observational Studies

Appendix A. Answers

Appendix B. Tables and Selected Formulas

Appendix C. Credits