Construct a 95% Confidence Interval for the Population Mean, μ

question 79

Multiple Choice

Construct a 95% confidence interval for the population mean, μ. Assume the population has a normaldistribution. A sample of 20 part-time workers had mean annual earnings of $3120 with a standard deviationof $677. Round to the nearest dollar.

• A) ($2803, $3437)
• B) ($1324, $1567)
• C) ($2135, $2567)
• D) ($2657, $2891)

---

Definitions:

Legal Accountability

The responsibility to act within the confines of the law and be answerable for legal obligations and duties.

42 CFR

A part of the Code of Federal Regulations that deals with confidentiality of substance use disorder patient records.

Competency

The ability of an individual to do a job properly, including the necessary skills, knowledge, and behavior.

Perceptions

The process by which individuals interpret and make sense of sensory information, influencing how they understand and interact with the world.