Surface defects have been counted on 25 rectangular steel plates, and the data are shown in Table 6E.9. Set up a control chart for nonconformities using these data. Does the process producing the plates appear to be in statistical control? Plate Number Number of Nonconformities Plate Number Number of Nonconformities 1 1 14 0 2 0 15 2 3 4 16 1 +56 4 3 17 3 5 1 18 5 2 19 7 5 20 8 0 21 9 2 22 10 1 23 11 1 24 12 0 25 163102+ 4 4 13 8