| Hypothesis Test about the Mean - Confidence Interval | |
| Sample size | 64 |
| Sample standard deviation | 3.68986169999356 |
| Confidence | 0.95 |
| Null hypothesis | 20 |
| Sample Mean | 21.1875 |
| 2-sided Confidence Interval | [ 20.2657999710760 , 22.1092000289240 ] |
| Left-sided Confidence Interval | [ 20.41751708503 , +inf ] |
| Right-sided Confidence Interval | [ -inf, 21.95748291497 ] |