Question 4 (1+2+2+3 points) An assembly-line process has five tasks as listed in the table below: Task 1 Task 2 Task 3 Task 4 Task 5 Task time 10 min 5 min 10 min 16 min 4 min Three workers (S1, S2, and S3) are staffed to this assembly line, and the assignment of tasks to each workers is: S1 does Task 1. S2 does Tasks 2 and 3. S3 does Tasks 4 and 5. For the following questions, we assume that process is operating at full capacity. (a) Which worker is the bottleneck of the process? What is the process capacity in (units/hour]? (1 point) (b) What is the idle time of each worker in [minutes)? (c) Assume a wage rate of $20 per hour. What is the direct labor cost in [S/unit)? (d) Still assume a wage rate of $20 per hour. If we reassign Activity 5 from 53 to S1, what will be the new direct labor cost in [S/unit]? Is this reassign an improvement