When solving for the sample size needed to compute a 95 percent confidence inter

Question

When solving for the sample size needed to compute a 95 percent confidence interval for a population proportion "p," having a given error bound "E," we choose a value of Picture that: Makes Picture as small as reasonably possible. Makes Picture as large as reasonably possible. Makes Picture as close to .5 as reasonably possible. Makes Picture as close to .25 as reasonably possible. Both Makes Picture as large as reasonably possible and Makes Picture as close to .25 as reasonably possible are correct.

Explanation / Answer

When solving for the sample size needed to compute a 95 percent confidence interval for a population proportion "p," having a given error bound "E," we choose a value of Picture that

Both Makes Picture as large as reasonably possible and Makes Picture as close to .25 as reasonably possible are correct.

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