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:

Centralized Power

A form of governance in which all major decisions and authority are concentrated in a central government or authority figure.

Direct Democracy

A form of democracy in which people directly decide on policy initiatives without intermediary representatives or officials.

Fort Sumter

A federal fort in Charleston Harbor, South Carolina, notable for the first shots of the American Civil War being fired there in 1861.

Charleston Harbor

a notable body of water located in South Carolina, known historically for its strategic importance during both the American Revolution and the Civil War.