The management chair at is considering installing a voice mail system. Monthly operating costs are $ 25 per voice mailbox, but the system will reduce the amount of time the office assistant spends answering the telephone by 60 percent. The department has 32 telephones. Use the results of your simulation in problem 4 to estimate the proportion of the assistant’s time currently spent answering the telephone. The office assistant’s salary (and overhead) is $ 3,000 per month. Should the management chair order the voice mail system?