The Business College Computing Center Wants to Determine the Proportion

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.