| Testing Mean with known Variance | |
| sample size | 37 |
| population variance | 3.29734848 |
| sample mean | 1.87878788 |
| null hypothesis about mean | 0 |
| type I error | 0.05 |
| critical value (one-tailed) | 0.491030895596894 |
| confidence interval (two-tailed) (sample mean) | [ 1.29368847972689 , 2.46388728027311 ] |
| conclusion for one-tailed test | |
| Reject the null hypothesis. | |
| conclusion for two-tailed test | |
| Reject the null hypothesis | |