Which of the following statements is true regarding the width of a confidence interval for a population proportion?
A)	It is narrower for 95% confidence than for 90% confidence.
B)	It is wider for a sample of size 80 than for a sample of size 40.
C)	It is wider for 95% confidence than for 99% confidence.
D)	It is narrower when the sample proportion is 0.20 than when the sample proportion is 0.50.
Answer:D
Which of the following statements is true regarding the width of a confidence interval for a population proportion?
A)	It is narrower for 95% confidence than for 90% confidence. B)	It is wider for a sample of size 80 than for a sample of size 40. C)	It is wider for 95% confidence than for 99% confidence. D)	It is narrower when the sample proportion is 0.20 than when the sample proportion is 0.50.