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

question 133

Multiple Choice

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

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Definitions:

Substance Dependence

Substance dependence refers to the compulsive use of drugs or alcohol, leading to clinically significant impairment or distress.

Acetylcholine

A neurotransmitter in both the peripheral and central nervous systems that plays an important role in muscle contraction and the modulation of neuronal activity.

Norepinephrine

A neurotransmitter involved in attention, emotions, sleeping, dreaming, and learning.

Astrocyte

Star-shaped glial cell that provides structural support to CNS neurons and transports substances between neurons and blood vessels.