Valerie is an auditor who is going to study the checking accounts in a small bank. The
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Valerie is an auditor who is going to study the checking accounts in a small bank. The bank has 750 accounts, and Valerie plans to sample 5 of these accounts in the first stage of her audit. If one or more of these 5 is found to be in error, she will taken a second (larger) sample. Find the probability she will need to take a second sample if, in fact,
a) 10 of the 750 accounts are actually in error.
b) 50 of the 750 accounts are actually in error.
c) 100 of the 750 accounts are actually in error.
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