PA 3-1CI| An automated car wash serves customers... An automated car wash serves customers with the following serial process: ore-treat, wash, rinse, wax, hand dry. Each of these steps is performed by a dedicated machine except for the hand dry step. which is performed manually on each car by one of 1 worl-cers. The steps of the process have the following processing times: Pro-treat: 3 minute per car Wash: 4 minutes per our Rinse: 3 minutes per car Wax: 5 minutes per car Hand dry: 13 minutes per car If the car wash has a demand of 1? cars per hour, what is the ow a. rate of the process? {Do not round intermediate calculations. cars per hour Round your answer to 2 decimal places} _. ........................ . If the car wash has a demand of 1? cars per hour, what is the 5 5 b. utilization of the machine that performs the Wax process? (Round gperoent to nearest integer} = = PA 3-3 Consider a four-step serial process... Consider a four-step serial process with processing times given in the list below. There is one machine at each step of the process, and this is a macl'Iine-peoed pmcess. Step 1: 22 minutes per unit Step 2: 23 minutes per unit Step 3: 31 minutes per unit Step 4: 13 minutes per unit Assuming that the process starts out empty. how long will it take (in hours) to complete a batch of 1D1 units? (Do not round intermediate calculations. Round 1your answer to nearest hour] nm