A Sample Standard Deviation and Sample Size Are Given $\chi ^ { 2 }$

question 46

Multiple Choice

A sample standard deviation and sample size are given. Use the one-standard-deviation $\chi ^ { 2 }$ -interval procedure to obtain the specified confidence interval.
-s = 4, n = 11 , 95% confidence interval

• A)2.956 to 6.373
• B)2.795 to 7.02
• C)0.618 to 3.896
• D)2.795 to 3.51

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Definitions:

Posttraumatic Stress Disorder

A psychiatric state initiated by involvement in or observation of an alarming situation, featuring persistent flashbacks, nightmares, and heightened anxiety.

Flashbacks

Intense, vivid recollections of a past experience, often traumatic, that momentarily feels as if it is happening in the present.

Nightmares

Disturbing dreams that cause fear or anxiety, often waking the sleeper and can be related to stress or psychological issues.

Severe Depression

A mental health disorder characterized by persistently depressed mood or loss of interest in activities, causing significant impairment in daily life, more intense than general depression.