(47
(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.
A. ($492.52: $835.76)
B. None of the other choices is correct
C. ($493.71; $834.57)
D. ($455.65: $872.63)
Ε. ($453.59:$874.69)
Let 20.01 2.33 and t0.01.13 = 2.65
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