The Red Rock School District Has Six Buses in Its

Essay

The Red Rock School District has six buses in its fleet.Maintenance of the fleet is handled by Joe Clem, a mechanic who works for the district.The time between bus failures follows an exponential distribution with a mean of twenty days.During the time a bus is out of commission, the district must lease another bus at a cost of $80 per day.Joe has put in for retirement and the district is considering hiring
either Tom Meyers or Andy Johnson.Based on a skills assessment test, it is estimated that Tom can repair a bus in an average of 10
hours, while Andy will take an average of 8 hours.Tom wants a
salary equivalent to $160 per working day, while Andy wants a salary
equivalent to $170 per working day.A working day lasts 8 hours, and
there are 200 working days per year.Which employee should the
district hire? Give your reasons.