Aparticular manufacturing design requires a shaft with a diameter between 20.87 mm and 21.010 mm. the manufacturing process yields shafts with diameters normally distributed, with a mean of 21.002 mm and a standard deviation of 0.004 mm. complete parts (a) through (c).
a. for this process what is the proportion of shafts with a diameter between 20.87 mm and 21.00 mm question mark
b. for this process, the probability that a shaft is acceptable is to four decimal places as needed)c. for this process the diameter that will exceed by only 1% of the shafts is (round to four decimal places as needed)