The head of a bureau does not like to keep its clients waiting when they come to transact business—it is bad for public relations. On the average, two clients appear every hour, and a normal transaction takes approximately 90 minutes. In an eight-hour day, the bureau chief wants no more than approximately 2 percent of the clients to have to wait for service. In order to satisfy this criterion, how many bureau staff members should be assigned to deal with clients?
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