| Hypothesis Test about the Mean - Confidence Interval | |
| Sample size | 63 |
| Sample standard deviation | 4.00805640292552 |
| Confidence | 0.99 |
| Null hypothesis | 20 |
| Sample Mean | 21 |
| 2-sided Confidence Interval | [ 19.6580593152821 , 22.3419406847179 ] |
| Left-sided Confidence Interval | [ 19.7941318298683 , +inf ] |
| Right-sided Confidence Interval | [ -inf, 22.2058681701317 ] |