| Hypothesis Test about the Mean - Confidence Interval | |
| Sample size | 20 |
| Sample standard deviation | 4.75145407106853 |
| Confidence | 0.65 |
| Null hypothesis | 13 |
| Sample Mean | 21.05 |
| 2-sided Confidence Interval | [ 20.0319596446168 , 22.0680403553832 ] |
| Left-sided Confidence Interval | [ 20.6343640763116 , +inf ] |
| Right-sided Confidence Interval | [ -inf, 21.4656359236884 ] |