The Approximate 95% Confidence Interval for a Population Mean Is $x \pm \sigma / \sqrt { n }$

question 47

Multiple Choice

The approximate 95% confidence interval for a population mean is:

• A)
• \(x \pm \sigma / \sqrt { n }\)
• B)
• \(x \pm s / \sqrt { n }\)
• C)
• \[X \pm 2 \sigma / \sqrt { n }\]
• D)
• \(x \pm 2 s l \sqrt { n }\)

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Definitions:

Child Maltreatment

Intentional harm to or avoidable endangerment of anyone under 18 years of age.

Delayed Development

A slower rate of physical, emotional, or cognitive growth in children compared to the typical development benchmarks.

Childhood Death

The occurrence of death before reaching adulthood, often considered a tragic event affecting families and communities.

High-Risk Situation

Circumstances or environments that have a higher likelihood of leading to harm or negative outcomes.