Suppose you want to do a confidence interval for the mean age of your clients when X has a normal distribution and the population standard deviation is 1O. You want a margin of error of no more than 2...

Extracted text: Suppose you want to do a confidence interval for the mean age of your clients when X has a normal distribution and the population standard deviation is 1O. You want a margin of error of no more than 2 years. How many clients should you sample? None of the other choices is correct 97 10 96