The Business College Computing Center Wants to Determine the Proportion $25 \%$

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 75 have laptops. What assumptions are necessary for this test to be satisfied?

A) The sample size $n$ satisfies both $n p _ { 0 } \geq 15$ and $n q _ { 0 } \geq 15$ .
B) The sample size $\mathrm { n }$ satisfies $n \geq 30$ .
C) The sample proportion is close to 5 .
D) The population has an approximately normal distribution.