Solutions to End-of-Chapter Exercises
These are the solutions to the exercises at the end of each chapter. They are fully worked: the substitution, the intermediate value, the result, and what the result means. Solutions to the exercises inside each section are in the book itself, printed immediately after the exercises they answer.
Do the exercise first. A solution read before the attempt is just more text to read. A solution read after the attempt is a check on your reasoning, and only the second one teaches you anything.
The complete PDF contains all eighteen chapters, and its cover page states the revision date. The per-chapter files below are the same solutions, split up for anyone who wants one chapter rather than all of them — so download whichever suits you, not both. Corrections are made between revisions; if you are working from a copy saved last term, the errata page lists what has changed.
Part I — Research Methods
| Chapter | Solutions |
|---|---|
| 1. Introduction to Quantitative Methods | |
| 2. Fundamental Statistical Concepts | |
| 3. Introduction to Research Design | |
| 4. Data Collection Methods | |
| 5. Sampling Techniques |
Part II — Descriptive Statistics
| Chapter | Solutions |
|---|---|
| 6. Organising and Visualising Data | |
| 7. Measures of Central Tendency | |
| 8. Measures of Dispersion | |
| 9. The Normal Distribution | |
| 10. Bivariate Descriptive Statistics |
Part III — Inferential Statistics
| Chapter | Solutions |
|---|---|
| 11. Basic Probability Concepts | |
| 12. Inference and Estimation | |
| 13. Hypothesis Testing | |
| 14. The Chi-Square Test | |
| 15. Comparing Means | |
| 16. Simple Regression | |
| 17. Analysis of Variance | |
| 18. Assessment and Interpretation |
Something looks wrong
If a solution disagrees with your answer and you think the solution is the one at fault, you may well be right — tell me. Include the chapter and exercise number. Corrections go on the errata page and into the next revision.