Assuming the population standard deviation = 3, how large should a sample be to estimate the population mean μ with a margin of error not exceeding 0.5 if the
level of confidence is 95%?

Jack is considering a list of features and fees for current bank: jack plans on using network atms about 4 times per month. what would be jack’s total estimated annual fees for a checking account with direct paycheck deposit, one overdraft per year, and no 2nd copies of statements? a. $44 b. $104 c. $144 d. $176