An engine part has been designed to have a diameter of 55 millimeters. The standard deviation of
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An engine part has been designed to have a diameter of 55 millimeters. The standard deviation of the process is 0.001 millimeter.
A control chart is shown. Each chart has horizontal lines drawn at the mean μ, at μ ± 2σ, and at m ± 3σ. Determine whether the process shown is in control or out of control. Explain.
Transcribed Image Text:
Engine Part 55.0050 55.0025 55.0000 54.9975 2 4 10 12 Observation number Diameter (in millimeters)
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Related Book For
Elementary Statistics Picturing The World
ISBN: 9780134683416
7th Edition
Authors: Ron Larson, Betsy Farber
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