Question: The manager at a pizza store has a target value of 20 minutes for the delivery of pizzas. The delivery team consistently averages 19.8 minutes
The manager at a pizza store has a target value of 20 minutes for the delivery of pizzas. The delivery team consistently averages 19.8 minutes with a standard deviation of 0.5 minutes. Based on customer feedback, the manager has established upper specification limit of 22 minutes and a lower specification limit of 18 minutes for pizza deliveries. What is the process capability index? What should be the standard deviation to achieve a six sigma quality?
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