Mathematics, 28.01.2021 21:40, smallblueberry

A savings and loan association needs information concerning the checking account balances of its local customers. A random sample of 19 accounts was checked and yielded a mean balance of $714.14 and a standard deviation of $279.29. Find a 97% confidence interval for the true mean checking account balance for local customers.

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A savings and loan association needs information concerning the checking account balances of its loc...