Testing Mean with known Variance | |
sample size | 68 |
population variance | 13 |
sample mean | 21.1587301587302 |
null hypothesis about mean | 20 |
type I error | 0.35 |
critical value (one-tailed) | 20.1684764865695 |
confidence interval (two-tailed) (sample mean) | [ 20.7500928454477 , 21.5673674720127 ] |
conclusion for one-tailed test | |
Reject the null hypothesis. | |
conclusion for two-tailed test | |
Reject the null hypothesis |