A researcher wants to estimate the mean age of all Business Week readers at a 99% confidence level. She wants the margin of

Question

A researcher wants to estimate the mean age of all Business Week readers at a 99% confidence level. She wants the margin of error to
be within 3.1 years of the population mean. The standard deviation of ages of all Business Week readers is 10.04 years. The sample size
that will yield a margin of error within 3.1 of the population mean is:

Kunduz · Accepted Answer

Click to see the answer