A t-shirt factory has a 3 step process to produce their high quality t-shirts. The 3 steps include cutting, sewing and design. There is one machine at each process step. The process runs 24 hours a day seven days a week. The bottleneck procedure is the design machine. The design process requires an average of 7 minutes per t-shirt and the processing time has a standard deviation of 12 minutes. The design station is subject to random failures that stop the job in progress. Historic data has shown that the mean-time-to-failure (MTTF) is 20 hours and a mean-time-to-repair (MTTR) of 4 hours. Repair times are exponentially distributed. (Round all answers to 4 decimal places.) A. What is the availability of the design station? B. What is the effective processing time (te) of the design station? C. What is the SCV or ce?? A t-shirt factory has a 3 step process to produce their high quality t-shirts. The 3 steps include cutting, sewing and design. There is one machine at each process step. The process runs 24 hours a day seven days a week. The bottleneck procedure is the design machine. The design process requires an average of 7 minutes per t-shirt and the processing time has a standard deviation of 12 minutes. The design station is subject to random failures that stop the job in progress. Historic data has shown that the mean-time-to-failure (MTTF) is 20 hours and a mean-time-to-repair (MTTR) of 4 hours. Repair times are exponentially distributed. (Round all answers to 4 decimal places.) A. What is the availability of the design station? B. What is the effective processing time (te) of the design station? C. What is the SCV or ce