10 points 1. A producer of aluminum alloy extruded parts needs to verify if their process is running between the lower specification limit (LSL) of 17.5 HB (Brinnell Harness units) and the upper specification limit (USL) of 22.5 HB. There is a target of 20 HB. Engineers evaluate the capability of the manufacturing process to ensure that the process meets customer requirements of a Cpk of 1.0 or higher. Operators randomly select three extruded parts at
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