(a) What are the arrival rate and service rate in jobs per hour? (Round your answers to four decimal places.) = = (b) Show the operating characteristics. (Round your answers to four decimal places. Report time in hours.) Lq=1L=wq=w= h Show the total cost per hour. (Express the total cost per hour in dollars. Round your answer to the nearest cent.) TC=$ wq=w=hh Show the total cost per hour. (Express the total cost per hour in dollars. Round your answer to the nearest cent.) TC=$ The average savings over a 40 -hour work week amount to $ . Based on this, the director's argument should be