| Hypothesis Test about the Mean - Confidence Interval | |
| Sample size | 160 |
| Sample standard deviation | 157.977289064165 |
| Confidence | 0.05 |
| Null hypothesis | 20 |
| Sample Mean | 31.00625 |
| 2-sided Confidence Interval | [ 30.2218552247661 , 31.7906447752339 ] |
| Left-sided Confidence Interval | [ 10.3429475952057 , +inf ] |
| Right-sided Confidence Interval | [ -inf, 51.6695524047943 ] |