| 131690 | Additional Information and Full Hypothesis Test Examples · Exercise 48 | Medium | |
| 131692 | Additional Information and Full Hypothesis Test Examples · Exercise 50 | Medium | |
| 131694 | Additional Information and Full Hypothesis Test Examples · Exercise 52 | Medium | |
| 131696 | Additional Information and Full Hypothesis Test Examples · Exercise 54 | Medium | |
| 131698 | Two Population Means with Unknown Standard Deviations · Example 1 | Easy | |
| 131702 | Two Population Means with Unknown Standard Deviations · Example 11 | Easy | |
| 131703 | Two Population Means with Unknown Standard Deviations · Try It 3 | Easy | |
| 131705 | Two Population Means with Unknown Standard Deviations · Exercise 6 | Medium | |
| 131707 | Two Population Means with Unknown Standard Deviations · Exercise 10 | Medium | |
| 131711 | Two Population Means with Unknown Standard Deviations · Exercise 20 | Medium | |
| 131713 | Two Population Means with Unknown Standard Deviations · Exercise 22 | Medium | |
| 131715 | Two Population Means with Unknown Standard Deviations · Exercise 24 | Medium | |
| 131717 | Two Population Means with Unknown Standard Deviations · Exercise 26 | Medium | |
| 131719 | Two Population Means with Unknown Standard Deviations · Exercise 28 | Medium | |
| 131721 | Two Population Means with Unknown Standard Deviations · Exercise 30 | Medium | |
| 131722 | Two Population Means with Unknown Standard Deviations · Exercise 31 | Medium | |
| 131723 | Two Population Means with Unknown Standard Deviations · Exercise 33 | Medium | |
| 131724 | Two Population Means with Unknown Standard Deviations · Exercise 34 | Medium | |
| 131725 | Two Population Means with Unknown Standard Deviations · Exercise 35 | Medium | |
| 131726 | Two Population Means with Unknown Standard Deviations · Exercise 36 | Medium | |
| 131727 | Two Population Means with Unknown Standard Deviations · Exercise 37 | Medium | |
| 131728 | Two Population Means with Unknown Standard Deviations · Exercise 38 | Medium | |
| 131729 | Two Population Means with Unknown Standard Deviations · Exercise 39 | Medium | |
| 131731 | Two Population Means with Unknown Standard Deviations · Exercise 42 | Medium | |
| 131733 | Two Population Means with Known Standard Deviations · Example 1 | Easy | |
| 131735 | Two Population Means with Known Standard Deviations · Example 2 | Easy | |
| 131737 | Two Population Means with Known Standard Deviations · Exercise 10 | Medium | |
| 131739 | Two Population Means with Known Standard Deviations · Exercise 12 | Medium | |
| 131741 | Two Population Means with Known Standard Deviations · Exercise 14 | Medium | |
| 131743 | Two Population Means with Known Standard Deviations · Exercise 16 | Medium | |
| 131744 | Two Population Means with Known Standard Deviations · Exercise 17 | Medium | |
| 131745 | Two Population Means with Known Standard Deviations · Exercise 18 | Medium | |
| 131746 | Two Population Means with Known Standard Deviations · Exercise 19 | Medium | |
| 131747 | Two Population Means with Known Standard Deviations · Exercise 20 | Medium | |
| 131748 | Two Population Means with Known Standard Deviations · Exercise 21 | Medium | |
| 131749 | Comparing Two Independent Population Proportions · Example 1 | Easy | |
| 131751 | Comparing Two Independent Population Proportions · Example 2 | Easy | |
| 131752 | Comparing Two Independent Population Proportions · Example 3 | Easy | |
| 131758 | Comparing Two Independent Population Proportions · Try It 7 | Easy | |
| 131760 | Comparing Two Independent Population Proportions · Try It 9 | Easy | |
| 131762 | Comparing Two Independent Population Proportions · Exercise 7 | Medium | |
| 131764 | Comparing Two Independent Population Proportions · Exercise 9 | Medium | |
| 131766 | Comparing Two Independent Population Proportions · Exercise 11 | Medium | |
| 131767 | Comparing Two Independent Population Proportions · Exercise 12 | Medium | |
| 131768 | Comparing Two Independent Population Proportions · Exercise 13 | Medium | |
| 131769 | Comparing Two Independent Population Proportions · Exercise 15 | Medium | |
| 131771 | Comparing Two Independent Population Proportions · Exercise 17 | Medium | |
| 131772 | Comparing Two Independent Population Proportions · Exercise 18 | Medium | |
| 131773 | Comparing Two Independent Population Proportions · Exercise 19 | Medium | |
| 131774 | Comparing Two Independent Population Proportions · Exercise 20 | Medium | |