In the Equation for Calculating a Confidence Interval for a Proportion

question 11

Multiple Choice

In the equation for calculating a confidence interval for a proportion, $p \pm z_{a} / 2 \sqrt{\frac{p(1-p) }{n}}, \text { what does } \sqrt{\frac{p(1-p) }{n}}$
represent?

• A)the mean for the sampling distribution of the proportion
• B)the degree of freedom for the sampling distribution of the proportion
• C)the standard error for the sampling distribution of the proportion
• D)the estimator for sampling distribution of the proportion

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