Testing Mean with known Variance | |
sample size | 64 |
population variance | 13 |
sample mean | 21.1875 |
null hypothesis about mean | 20 |
type I error | 0.35 |
critical value (one-tailed) | 20.1736615873898 |
confidence interval (two-tailed) (sample mean) | [ 20.7662862986919 , 21.6087137013081 ] |
conclusion for one-tailed test | |
Reject the null hypothesis. | |
conclusion for two-tailed test | |
Reject the null hypothesis |