What is needed to compute a sample size,n,to obtain a confidence interval with a specified margin of error,m?
A)Standard deviation,m,and z*
B)Sample mean,Standard deviation,m,and z*
C)m and z*
D)Population mean,standard deviation,m,and z*

Question

Quizplus · Accepted Answer

To compute a sample size (n) for obtaining a confidence interval with a specified margin of error (m), you need the standard deviation and the z* value (which corresponds to the desired confidence level). The sample mean and population mean are not required for calculating sample size in this context.

What Is Needed to Compute a Sample Size,n,to Obtain a Confidence