Testing Mean with known Variance
sample size9
population variance0.012
sample mean0.1545
null hypothesis about mean0.15
type I error0.05
critical value (one-tailed)0.210061562351701
confidence interval (two-tailed)
(sample mean)
[ 0.0829322342513137 , 0.226067765748686 ]
conclusion for one-tailed test
Do not reject the null hypothesis.
conclusion for two-tailed test
Do not reject the null hypothesis