Testing Mean with known Variance | |
sample size | 20 |
population variance | 13 |
sample mean | 20.285 |
null hypothesis about mean | 20 |
type I error | 0.35 |
critical value (one-tailed) | 20.3106552915872 |
confidence interval (two-tailed) (sample mean) | [ 19.5315100246566 , 21.0384899753434 ] |
conclusion for one-tailed test | |
Do not reject the null hypothesis. | |
conclusion for two-tailed test | |
Do not reject the null hypothesis |