A Company Is Interested in Estimating $$\mu$$ , the Mean Number of Days of Sick Leave Taken

question 142

Multiple Choice

A company is interested in estimating $$\mu$$ , the mean number of days of sick leave taken by its employees. The firm's statistician randomly selects 100 personnel files and notes the number of sick days taken by each employee. The sample mean is 12.2 days. From historical records, the population standard deviation is about 10 days.
-A 93% confidence interval for $\mu$
,the mean number of days of sick leave would be _____.

• A)[10.725,13.675]
• B)[10.390,14.010]
• C)[12.019,12.381]
• D)[12.053,12.348]
• E)[11.735,12.665]

---

Definitions:

World Health Organization

A specialized agency of the United Nations responsible for international public health.

Health Issues

Refers to a variety of diseases, disorders, and conditions that affect an individual's physical, mental, or emotional well-being.

Authority

The power or right to give orders, make decisions, and enforce obedience, often associated with a position of leadership or governance.

Industrialization

The transformation from societies primarily based on agriculture and crafts to those characterized by the mass production of goods and services using advanced technologies and factories.