Current Attempt in Progress A department store manager wants to estimate the mean amount spent by all customers at this
Posted: Wed May 11, 2022 8:13 am
Current Attempt in Progress A department store manager wants to estimate the mean amount spent by all customers at this store at a 97% confidence level. The manager knows that the standard deviation of amounts spent by all customers at this store is $57. What minimum sample size should he choose so that the estimate is within $5 of the population mean? n