The Use of the Standard Normal Distribution for Constructing a Confidence

Multiple Choice

The use of the standard normal distribution for constructing a confidence interval estimate for the population proportion p requires that:

A) n $\hat { p }$ and n(1 - $\hat { p }$ ) are both greater than 5, where $\hat { p }$ denotes the sample proportion.
B) np and n(1 - p) are both greater than 5.
C) n $\hat { p }$ and n(p + $\hat { p }$ ) are both greater than 5.
D) the sample size is greater than 5.