Answer to Question #336557 in Statistics and Probability for kim

Question

One-tailed test, o? is known, a = 0.05, n= 34

Answer 1

$n = 34, α = 0.05, \sigma$ is known.

One-tailed test

Given $df=n-1=33$ degrees of freedom. The critical $t-$ value for one-tailed, $df=33$ degrees of freedom, and $\alpha=0.05$ is

$$t_c=1.69236, right-tailed$$

$$t_c=-1.69236, left-tailed$$