Question: Partial Question 18 2.5 / 5 pts You have been asked to analyze the capacity of the Stitching department of a shoe manufacturer. The batch

Partial Question 18 2.5 / 5 pts You have been

Partial Question 18 2.5 / 5 pts You have been asked to analyze the capacity of the "Stitching department" of a shoe manufacturer. The batch size is 100 pairs of shoes. Each pair in a batch is exactly the same style, size and color. The plant operates 8 hours per day. The stitching department is a worker-paced line with 3 operations: prefit, join, and ornament. No setups are required. Operations are performed in sequence. There are 9 workers: 4 assigned to prefit, 3 to join and 2 to ornament. Each worker on average has 2 batches at his/her station: the batch being processed and one batch waiting. When a batch is finished at ornament, the supervisor transfers it out of the department and brings in a new batch. Task Processing time/pair (minutes) Prefit 5.0 Join 3.0 Ornament 2.5 What is the average throughput time in minutes for a batch? (Assume the throughput time start when a batch joins the queue in front of Prefit.) Answer: Since each worker has 2 batches and there are 9 workers WIP = 18 batches. Little's Law says, WIP = AR TP = 1/CT * TP TP = WIP CT Therefore, TP = 22,5 mins

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