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.

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Definitions:

Norms of Primary Groups

The norms of primary groups refer to the expected behaviors and rules established within small, close-knit groups such as families or close friends, which significantly influence individual behavior.

Social Networks

Structures made up of individuals or organizations connected by one or more types of interdependency, such as friendship, kinship, common interest, or economic exchange.

Group Cohesion

The bonding together of members of a group, which creates a sense of unity and promotes mutual support among its members.

Groupthink

A phenomenon where a group makes faulty decisions because of group pressures, leading to a deterioration in mental efficiency, reality testing, and moral judgment.