Question: 3. Plastic strips that are used in a sensitive electronic device are manufactured to a maximum specification of 305.70mm and a minimum specification of 304.55mm.

3. Plastic strips that are used in a sensitive electronic device

3. Plastic strips that are used in a sensitive electronic device are manufactured to a maximum specification of 305.70mm and a minimum specification of 304.55mm. If the strips are less than the minimum specification, they are scrapped; if greater than the maximum specification, they re reworked. The part dimensions are normally distributed with a population mean of 305.20mm and a standard deviation of 0.25mm. a. What percentage of the product is scrap? b. What percentage is rework? c. How can the process be centered to eliminate all but 0.1% of the scrap? d. What is the rework percentage now

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