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Many manufacturing problems involve the matching of machine parts such as shafts that fit into a valve hole A particular design requires a shaft with a diameter of 22.000 mm but shafts

Many manufacturing problems involve the matching of machine parts, such as shafts that fit into a valve hole. A particular design requires a shaft with a diameter of 22.000 mm, but shafts with diameters between 21.990 mm and 22.010 mm are acceptable. Suppose that the manufacturing process yields shafts with diameters normally distributed, with a mean of 22.002 mm and a standard deviation of 0.005 mm. For this process, what is a. the proportion of shafts with a diameter between 21.99 mm and 22.00 mm? b. the probability that a shaft is acceptable? c. the diameter that will be exceeded by only 2% of the shafts? d. What would be your answers in (a) through (c) if the standard deviation of the shaft diameters were 0.004 mm?

Jun 20 2020 View more View Less

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