Question: A new machine has just been installed to cut and rough shape large slugs. The slugs are then transferred to a precision grinder. One of

A new machine has just been installed to cut and rough shape large slugs. The slugs are then transferred to a precision grinder. One of the critical measurements is the outside diameter. The quality control inspector randomly selected five slugs each hour, measured the outside diameter, and recorded the results. The measurements (in millimeters) for the period 8:00 AM to 9:30 AM follow. Note quality control constant (A2 = 1.023, D3 = 0, D4 = 2.574) Outside diameter (millimeters) Time Period 3 samples pulled each time period X-Bar Range 8:00 3 4 2 8:30 4 5 3 9:00 2 2 2 9:30 1 2 3

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