A bank wishes to estimate the mean balances owed by its credit card customers. The population standard deviation is S150
Posted: Wed May 11, 2022 7:09 am
A bank wishes to estimate the mean balances owed by its credit card customers. The population standard deviation is S150, 18 a 95 percent confidence interval is used and a margin of error of +$30 is desired, how many cardholders should be sampled? customers. (Round up the next whole number). n