| Hypothesis Test about the Mean - Confidence Interval | |
| Sample size | 42 |
| Sample standard deviation | 3.80666632087885 |
| Confidence | 0.95 |
| Null hypothesis | 20 |
| Sample Mean | 21.4047619047619 |
| 2-sided Confidence Interval | [ 20.2185211718619 , 22.5910026376619 ] |
| Left-sided Confidence Interval | [ 20.4162707259002 , +inf ] |
| Right-sided Confidence Interval | [ -inf, 22.3932530836237 ] |