Question: 16. Surface defects have been counted on 25 rectangular steel plates, and the data are shown below. Set up a control chart. Does the process
16. Surface defects have been counted on 25 rectangular steel plates, and the data are shown below. Set up a control chart. Does the process producing the plates appear to be in statistical control?


Plate Number Number of Defects Plate Number Number of Defects 1 2 14 10 2 23 3 15 2 4 16 4 3 17 26 6
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