A Large Midwestern University Is Interested in Estimating the Mean

question 36

Multiple Choice

A large Midwestern university is interested in estimating the mean time that students spend at the student recreation center per week. A previous study indicated that the standard deviation in time is about 40 minutes per week. If the officials wish to estimate the mean time within ± 10 minutes with a 90 percent confidence, what should the sample size be?

• A) 44
• B) 62
• C) 302
• D) Can't be determined without knowing how many students there are at the university.

---

Definitions:

Impulses

Sudden, involuntary inclinations to act or respond in a particular way without conscious reasoning.

Paranoia

A mental condition characterized by delusions of persecution, unwarranted jealousy, or exaggerated self-importance, typically elaborated into an organized system.

Mental Illness

Conditions that affect a person's thinking, feeling, behavior, or mood, significantly impacting their ability to relate to others and function each day.

Trait Aggressiveness

A stable personality characteristic that predisposes individuals to engage in aggressive behaviors across a variety of situations.