AU.S. Postal Service supervisor is looking for ways to reduce stress in the sorting dapat With the bestant stampedes machine-canceled and loaded into tuts with 400 letters per tub. The tubs are then pushed to postal clerks, who read and kayip codes Intoutorated sorting machine at the role of one sib per 450 seconds. To overcome the stress caused when the stamp canceling machine outpaces the sorting cake spullen proposed. When the decadeady to process another tub of nail they will pull the tub from the canceling machine area. How many tubs should circulate between the sorting clerk and the candeling machine 95.000 letters are to be sorted doing a 10 hours the safety stock policy variable, als 0.20, and the average waiting time plus material handing time is 30 minutes per lub? The average processing time per tub of letters, P, is day (Enter your response roured to our deamnar places) The average waiting time per tub of letters, wis day (Enter your response rounded to tour decimal places Therefore, the number of tubs that should circulate between the setting clerka and the concaling machine istuba (Enfor your response rounded up to the next wholo number)