A bank wishes to estimate the mean credit card balance owed by its customers. The population standard deviation is estimated to be $300. If a 98 percent confidence interval is used and an interval of $75 is desired, how many customers should be sampled?
A) 44
B) 212
C) 629
D) 87

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The Answer of A bank wishes to estimate the mean credit card balance owed by its customers. The population standard deviation is estimated to be $300. If a 98 percent confidence interval is used and an interval of $75 is desired, how many customers should be sampled?
A) 44
B) 212
C) 629
D) 87

A Bank Wishes to Estimate the Mean Credit Card Balance