Consider a Test Of $\mathrm { H } _ { 0 } : \mu = 12$

question 20

Multiple Choice

Consider a test of $\mathrm { H } _ { 0 } : \mu = 12$ . For the following case, give the rejection region for the test in terms of the $z$ -statistic: $\mathrm { H } _ { \mathrm { a } } : \mu < 12 , \alpha = 0.10$

• A) \(z < - 1.645\)
• B) \(\mathrm { z } < - 1.28\)
• C) \(z > - 1.28\)
• D) \(\mathrm { z } < 1.645\)

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