The General Format for a Confidence Interval Can Be Written $\pm$

Multiple Choice

The general format for a confidence interval can be written as: sample estimate $\pm$ multiplier * standard error. In creating a confidence interval for a proportion, the standard error is:

A) $\sqrt{\frac{\hat{p}(1 - \hat{p}) }{n}}$
B) 2 × $\sqrt{\frac{\hat{p}(1 - \hat{p}) }{n}}$
C) $\sqrt{\frac{1}{n}}$
D) $\sqrt{\frac{{p}(1 - p) }{n}}$