A test of $H _ { 0 } : \mu = 50$ versus $H _ { 1 } : \mu \neq 50$ is performed using a significance level of $\alpha = 0.05$. The value of the test statistic is $z = - 1.88$. Is $H _ { 0 }$ rejected?
A) It cannot be determined.
B) No
C) Yes

Question

Quizplus · Accepted Answer

For a two-tailed test with $\alpha = 0.05$, the critical z-values are $\pm 1.96$. Since the calculated z-value of $-1.88$ does not exceed the critical value of $-1.96$, we fail to reject $H_0$.

A Test Of H0:μ=50H _ { 0 } : \mu = 50H0​:μ=50

A Test Of $H _ { 0 } : \mu = 50$