A Researcher Wants to Estimate the Population Proportion with a 90

question 16

Multiple Choice

A researcher wants to estimate the population proportion with a 90% level of confidence.She estimates from previous studies that the population proportion is no more than .30.The researcher wants the estimate to have an error of no more than .02.The necessary sample size is at least ___.

• A)29
• B)47
• C)298
• D)1421
• E)1500

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Definitions:

Intrinsic Motivation

The drive to engage in activities for their own sake because they are interesting and satisfying in and of themselves, not for some separable consequence.

Extrinsic Motivation

The drive to perform actions due to external rewards or pressures rather than for intrinsic satisfaction.

Sensation-Seeking

A trait describing the tendency to seek out novel, varied, complex, and intense sensations and experiences, and the willingness to take physical, social, legal, and financial risks for such experiences.

Extrinsic Motivation

Motivation driven by external rewards such as money, fame, grades, and praise.