The Business College Computing Center Wants to Determine the Proportion

question 135

Multiple Choice

The business college computing center wants to determine the proportion of business students who have laptop computers. If the proportion exceeds 25%, then the lab will scale back a proposed enlargement of its facilities. Suppose 250 business students were randomly sampled and 65 have laptops. What assumptions are necessary for this test to be satisfied?

• A) The sample size n satisfies both np0 ≥ 15 and nq0 ≥ 15.
• B) The population has an approximately normal distribution.
• C) The sample proportion is close to .5.
• D) The sample size n satisfies n ≥ 30.

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Definitions:

Controlled Crash

A deliberate action to safely manage the descent and impact of a failing system, structure, or vehicle to minimize damage or harm.

Crash Test Dummies

Anthropomorphic test devices used in controlled experiments to simulate human body responses and injuries caused by vehicle collisions.

Domination

The exercise of control or influence over someone or something, or the state of being so controlled.

Submission

The action of accepting or yielding to a superior force or to the will or authority of another person.