Fill in the Blank: the Critical Value $z _ { \alpha / 2 }$

question 1

Multiple Choice

Fill in the blank: The critical value $z _ { \alpha / 2 }$ that corresponds to a ______% confidence level is 2.33 .

• A) 88
• B) 90
• C) 98
• D) 99

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Definitions:

Obsessive-Compulsive Disorder

A psychological condition marked by ongoing, intrusive thoughts (obsessions) and repetitive actions (compulsions).

Post-Traumatic Stress Disorder

A psychological disorder caused by exposure to or witnessing a horrifying incident, resulting in recurring nightmares, intense stress, and vivid flashbacks.

Generalised Anxiety Disorder

Generalized anxiety disorder is characterized by persistent and excessive worry about various aspects of life, not tied to any specific object or situation.

Panic Disorder

A mental health condition characterized by sudden and repeated episodes of intense fear or discomfort, along with physical symptoms such as heart palpitations, chest pain, or shortness of breath.