You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe the population standa

[answerhappygod]

You want to obtain a sample to estimate a population mean. Based
on previous evidence, you believe the population standard deviation
is approximately σ = 58.7 . You would like to be 90% confident that
your estimate is within 5 of the true population mean. How large of
a sample size is required? n = Do not round mid-calculation.
However, you are encouraged to use a critical value accurate to
three decimal places — this is important for the system to be able
to give hints for incorrect answers.