Explore BrainMass

Standard Deviation and Standard Error of a Population

If the standard deviation of a population is 70 and we want the standard error (the standard deviation of the sample mean) to be 14, what is the number of samples that we need to take?

Solution Preview

Given the standard deviation sigma, and sample size n. The ...

Solution Summary

This solution calculates the number of samples needed for a population based on the standard error.