A Study Is Going to Be Conducted in Which a Population

Multiple Choice

A study is going to be conducted in which a population mean will be estimated using a 92% confidence interval.The estimate needs to be within 12 of the actual population mean.The population variance is estimated to be around 2500.The necessary sample size should be at least _______.

A) 15
B) 47
C) 54
D) 638
E) 700