| Hypothesis Test about the Mean - Confidence Interval | |
| Sample size | 20 |
| Sample standard deviation | 3.73989867580168 |
| Confidence | 0.95 |
| Null hypothesis | 20 |
| Sample Mean | 21.25 |
| 2-sided Confidence Interval | [ 19.499673541174 , 23.000326458826 ] |
| Left-sided Confidence Interval | [ 19.8039836943319 , +inf ] |
| Right-sided Confidence Interval | [ -inf, 22.6960163056681 ] |