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(Choose 1 answer)
A savings and loan association needs information concerning the checking account balances of its local customers. A random sample of 14 accounts was checked and yielded a mean balance of $664.14 and a standard deviation of $297.29. Find a 98%confidence interval for the true mean checking account balance for local customers. Assume that the population has a normal distribution.
Let 20.01 2.33 and to.01.13 = 2.65
A. ($493.71; $834.57)
Β. ($455.65; $872.63)
