| Hypothesis Test about the Mean - Confidence Interval | |
| Sample size | 162 |
| Sample standard deviation | 3.6570654562011 |
| Confidence | 0.65 |
| Null hypothesis | 13 |
| Sample Mean | 20.6419753086420 |
| 2-sided Confidence Interval | [ 20.3726598895243 , 20.9112907277597 ] |
| Left-sided Confidence Interval | [ 20.5310649622482 , +inf ] |
| Right-sided Confidence Interval | [ -inf, 20.7528856550357 ] |