What percentage of the bearings produced will not acceptable

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Reference no: EM13196445

A machine that produces ball bearings has initially been set so that the true average diameter of the bearings it produces is 0.400 in. A bearing is acceptable if its diameter is within 0.004 in. of this target value. Suppose, however, that the setting has changed during the course of production, so that the distribution of the diameters produced is well approximated by a normal distribution with mean 0.399 in. and standard deviation 0.002 in. What percentage of the bearings produced will not be acceptable? (Give the answer to four decimal places.)

Reference no: EM13196445

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