Assume that you wish to estimate a population proportion, p. For the given margin of error and confidence level, determine the sample size required.
You wish to estimate the proportion of adults that have ever used alternative medicine. Obtain a sample size that will ensure a margin of error of at most 0.01 for a 95% confidence interval. It is deemed reasonable to presume that of those sampled, the proportion that have used alternative medicine will be at least 0.56.
8519
16,338
21,513
9466