A company is studying the productivity of a machine that produces an automobile part. The times (in
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A company is studying the productivity of a machine that produces an automobile part. The times (in seconds) needed to produce 100 parts for each of eight test production runs were: 40.77, 36.38, 36.82, 52.94, 48.33, 28.31, 60.56, and 28.92. Use these data to compute a 95 percent confidence interval for the standard deviation of all times needed to produce 100 such automobile parts using the machine.
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Related Book For
Business Statistics In Practice
ISBN: 9780077534844
7th Edition
Authors: Bruce Bowerman, Richard OConnell, Emilly Murphree
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