Question: A bank manager randomly selected 25 large cash transactions from the 1,500 made in a month. The manager then checked to see that the correct

A bank manager randomly selected 25 large cash transactions from the 1,500 made in a month. The manager then checked to see that the correct procedures for reporting these transactions were followed.

(a) Is it appropriate to use a binomial model in this situation?
(b) If the chance for a procedural error is 10%, is it likely that the manager finds more than two such transactions? Argue informally, without computing the probability, from the mean and SD of the binomial model.
(c) Find the probability in part (b).

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