| Hypothesis Test about the Mean - Confidence Interval | |
| Sample size | 144 |
| Sample standard deviation | 119.966316942943 |
| Confidence | 0.95 |
| Null hypothesis | 50 |
| Sample Mean | 280.298611111111 |
| 2-sided Confidence Interval | [ 260.537237551487 , 300.059984670735 ] |
| Left-sided Confidence Interval | [ 263.747466757356 , +inf ] |
| Right-sided Confidence Interval | [ -inf, 296.849755464867 ] |