Find the Rejection Region for the Specified Hypothesis Test $\mathrm { H } _ { 0 } : \mu = 6$

Multiple Choice

Find the rejection region for the specified hypothesis test.
-Consider a test of $\mathrm { H } _ { 0 } : \mu = 6$ . For the following case, give the rejection region for the test in terms of the $z$ -statistic: $\mathrm { H } _ { \mathrm { a } } : \mu \neq 6 , \alpha = 0.10$

A) $z > 1.28$
B) $| z | > 1.28$
C) $| z | > 1.645$
D) $z > 1.645$