| Testing Mean with known Variance | |
| sample size | 63 |
| population variance | 13.56 |
| sample mean | 1.081081081 |
| null hypothesis about mean | 13 |
| type I error | 0.35 |
| critical value (one-tailed) | 12.8212353481885 |
| confidence interval (two-tailed) (sample mean) | [ 0.647489969779866 , 1.51467219222013 ] |
| conclusion for one-tailed test | |
| Reject the null hypothesis. | |
| conclusion for two-tailed test | |
| Reject the null hypothesis | |