An Auditor Is Going to Sample 64 Charge Accounts from the Many

Short Answer

An auditor is going to sample 64 charge accounts from the many active accounts at a large department store. Suppose the average balance owed among all the store's accounts is $75 with a standard deviation of $100.
Find the mean of the sampling distribution of .
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Find the standard deviation.
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What is the probability the sample mean of the balances owed among the 64 accounts sampled by the auditor is below $70?
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