A Random Sample of 250 Students at a University Finds $15.3 \pm .198$

question 13

Multiple Choice

A random sample of 250 students at a university finds that these students take a mean of 15.3 credit hours per quarter with a standard deviation of 1.6 credit hours. Estimate the mean credit hours taken by a student each quarter using a 95% confidence interval. Round to the nearest thousandth.

• A) \(15.3 \pm .198\)
• B) \(15.3 \pm .010\)
• C) \(15.3 \pm .013\)
• D) \(15.3 \pm .157\)

---

Definitions:

Managers

Individuals responsible for directing and overseeing the work of others and making decisions on behalf of an organization or department.

Creativity

The talent for formulating original and uncommon notions, or for crafting something that is both new and imaginative.

Workplace

Workplace is the location or environment where people are employed to perform tasks or jobs, encompassing both physical spaces and organizational cultures.

Second Session

A subsequent or follow-up meeting or period of activity that occurs after an initial session.