From a Population of Size 600, a Simple Random Sample

question 34

Multiple Choice

From a population of size 600, a simple random sample of size 60 is selected. The sample mean is 400, and the sample standard deviation is 50. An approximate 95% confidence interval for the population mean is

• A) 395 to 405
• B) 380 to 420
• C) 360 to 440
• D) 388 to 412

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Definitions:

Traumatic Childhood

Experiences during childhood that involve abuse, neglect, or other traumatic events leading to long-term psychological effects.

Physical Abuse

The intentional use of physical force to cause harm or injury to another person.

Emotional Abuse

A form of abuse characterized by a person subjecting or exposing another to behavior that may result in psychological trauma, including anxiety, chronic depression, or post-traumatic stress disorder.

Dissociative Identity Disorder

A psychiatric disorder characterized by the presence of two or more distinct personality states that control a person's behavior in different situations.