Proportion of shafts with a diameter

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Many manufacturing problems involve the accurate 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 between21.900 mm and 22.010 mm are acceptable. Suppose that the manufacturing process yields shafts that are 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 21.900 mm and 22.000 mm?

(b) the probability that a shaft is acceptable?

(c) the diameter that will be exceeded by only 2% of the shafts? 

Reference no: EM132137013

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