Testing Mean with known Variance | |
sample size | 97 |
population variance | 0.13 |
sample mean | 20.28 |
null hypothesis about mean | 20 |
type I error | 0.35 |
critical value (one-tailed) | 20.014106130143 |
confidence interval (two-tailed) (sample mean) | [ 20.245785782694 , 20.314214217306 ] |
conclusion for one-tailed test | |
Reject the null hypothesis. | |
conclusion for two-tailed test | |
Reject the null hypothesis |