| 129865 | Matched or Paired Samples · Exercise 5 | Medium | |
| 129875 | Matched or Paired Samples · Exercise 15 | Medium | |
| 130639 | Full Hypothesis Test Examples · Try It 2 | Easy | |
| 130644 | Full Hypothesis Test Examples · Example 6 | Easy | |
| 130668 | Comparing Two Independent Population Means · Example 6 | Easy | |
| 130669 | Comparing Two Independent Population Means · Example 8 | Easy | |
| 130670 | Comparing Two Independent Population Means · Example 9 | Easy | |
| 130671 | Comparing Two Independent Population Means · Example 11 | Easy | |
| 130676 | Comparing Two Independent Population Means · Exercise 23 | Medium | |
| 130678 | Comparing Two Independent Population Means · Exercise 25 | Medium | |
| 130681 | Comparing Two Independent Population Means · Exercise 28 | Medium | |
| 130694 | Test for Differences in Means: Assuming Equal Population Variances · Example 1 | Easy | |
| 130703 | Comparing Two Independent Population Proportions · Exercise 21 | Medium | |
| 130705 | Comparing Two Independent Population Proportions · Exercise 23 | Medium | |
| 130717 | Matched or Paired Samples · Example 1 | Easy | |
| 130719 | Matched or Paired Samples · Exercise 11 | Medium | |
| 130723 | Matched or Paired Samples · Exercise 15 | Medium | |
| 130725 | Matched or Paired Samples · Exercise 17 | Medium | |
| 131610 | Null and Alternative Hypotheses · Try It 1 | Easy | |
| 131612 | Null and Alternative Hypotheses · Exercise 1 | Medium | |
| 131617 | Null and Alternative Hypotheses · Exercise 11 | Medium | |
| 131621 | Outcomes and the Type I and Type II Errors · Try It 3 | Easy | |
| 131623 | Outcomes and the Type I and Type II Errors · Exercise 11 | Medium | |
| 131632 | Rare Events, the Sample, and the Decision and Conclusion · Try It 2 | Easy | |
| 131647 | Additional Information and Full Hypothesis Test Examples · Try It 5 | Easy | |
| 131650 | Additional Information and Full Hypothesis Test Examples · Example 5 | Easy | |
| 131651 | Additional Information and Full Hypothesis Test Examples · Try It 7 | Easy | |
| 131689 | Additional Information and Full Hypothesis Test Examples · Exercise 47 | Medium | |
| 131691 | Additional Information and Full Hypothesis Test Examples · Exercise 49 | Medium | |
| 131693 | Additional Information and Full Hypothesis Test Examples · Exercise 51 | Medium | |
| 131695 | Additional Information and Full Hypothesis Test Examples · Exercise 53 | Medium | |
| 131697 | Additional Information and Full Hypothesis Test Examples · Exercise 55 | Medium | |
| 131699 | Two Population Means with Unknown Standard Deviations · Try It 1 | Easy | |
| 131700 | Two Population Means with Unknown Standard Deviations · Example 6 | Easy | |
| 131701 | Two Population Means with Unknown Standard Deviations · Try It 2 | Easy | |
| 131706 | Two Population Means with Unknown Standard Deviations · Exercise 7 | Medium | |
| 131708 | Two Population Means with Unknown Standard Deviations · Exercise 13 | Medium | |
| 131714 | Two Population Means with Unknown Standard Deviations · Exercise 23 | Medium | |
| 131716 | Two Population Means with Unknown Standard Deviations · Exercise 25 | Medium | |
| 131720 | Two Population Means with Unknown Standard Deviations · Exercise 29 | Medium | |
| 131734 | Two Population Means with Known Standard Deviations · Try It 1 | Easy | |
| 131736 | Two Population Means with Known Standard Deviations · Exercise 5 | Medium | |
| 131738 | Two Population Means with Known Standard Deviations · Exercise 11 | Medium | |
| 131742 | Two Population Means with Known Standard Deviations · Exercise 15 | Medium | |
| 131750 | Comparing Two Independent Population Proportions · Try It 1 | Easy | |
| 131756 | Comparing Two Independent Population Proportions · Try It 5 | Easy | |
| 131765 | Comparing Two Independent Population Proportions · Exercise 10 | Medium | |
| 131770 | Comparing Two Independent Population Proportions · Exercise 16 | Medium | |
| 131780 | Comparing Two Independent Population Proportions · Exercise 26 | Medium | |
| 131782 | Comparing Two Independent Population Proportions · Exercise 28 | Medium | |