Question: please explain 1. A manufacturing process is supposed to create bolts that are 8 cm in diameter. To meet quality requirements, it has been decided

please explain

1. A manufacturing process is supposed to create bolts that are 8 cm in diameter. To meet quality requirements, it has been decided that the specification limits for the diameter of the bolt be set at 8.0 +1.5 cm (i) If the bolt diameter is normally distributed with a mean of 7.75 cm and a standard deviation of 1.25 cm, determine the fraction of nonconforming bolts. (10 pts) ANSWER (ii) Calculate and interpret the process-capability ratio of the process. (5 pts) VALUE: INTERPRETATION: (iii) What percentage of the tolerance ban is being used? (2 pt)

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