If the standard error for the sampling distribution of a proportion is equal to 0.0327 and if the population proportion, p, is equal to .80, the sample size must be 150.

Question

Quizplus · Accepted Answer

The standard error (SE) for a proportion is calculated using the formula SE = sqrt[(p(1-p))/n]. Plugging in the values, 0.0327 = sqrt[(0.8*0.2)/n], solving for n gives approximately 150.

If the Standard Error for the Sampling Distribution of a Proportion