(Answered) Question diameters of bolts produced by a particular

Statistics

Question: Diameters of bolts produced by a particular machine are normally distributed with mean 0.760 cm and standard deviation 0.012 cm. Specifications call for diameters from 0.720 cm to 0.780 cm.

a) What percentage of bolts will meet these specifications?

b) What percentage of bolts will be smaller than 0.730 cm?

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