Testing Mean with known Variance | |
sample size | 63 |
population variance | 13 |
sample mean | 21.1587301587302 |
null hypothesis about mean | 20 |
type I error | 0.05 |
critical value (one-tailed) | 20.7471858834961 |
confidence interval (two-tailed) (sample mean) | [ 20.2684032643406 , 22.0490570531198 ] |
conclusion for one-tailed test | |
Reject the null hypothesis. | |
conclusion for two-tailed test | |
Reject the null hypothesis |