A machining operation produces bearings with diameters that are normally distributed with a mean of 3.0005 inches and a standard deviation of .0010 inches. Specifications require the bearing diameters to lie in the interval of 3.000 +/-.0020 inches. Those outside the interval are considered scrap and must be disposed of. With the existing machine setting, what fraction of total production will be scrap

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section: Chapter Questions
Problem 22SGR
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A machining operation produces bearings with diameters that are normally distributed with a mean of 3.0005 inches and a standard deviation of .0010 inches. Specifications require the bearing diameters to lie in the interval of 3.000 +/-.0020 inches. Those outside the interval are considered scrap and must be disposed of. With the existing machine setting, what fraction of total production will be scrap?

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