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:

Job Analysis

The process of examining a job in detail to identify its duties, requirements, and the conditions under which it is performed.

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The level of achievement or proficiency demonstrated by an individual in carrying out their job functions or tasks.