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 , at 2, and at m 3 Determine whether the process shown is in control or out of control Explain Engine Part 55 0050 55 0025 55 0000 54 9975 2 4 10 12 Observation number Diameter (in millimeters)

Question: 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

An engine part has been designed to have a diameter of 55 millimeters. The standard deviation of the process is 0.001 millimeter.

Engine Part 55.0050 55.0025 55.0000 54.9975 2 4 10 12 Observation number Diameter (in millimeters)

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.

Engine Part 55.0050 55.0025 55.0000 54.9975 2 4 10 12 Observation number Diameter (in millimeters)

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