To monitor the quality problem, the COMPANY intends to employ Statistical Process Control (SPC). The data is gathered on a daily basis, with 20 samples obtained and assessed at random each day. The findings of non-conformance (NC) were recorded in the table below.

Sample No. of Sample Sample No. of Sample No. Defectives Size No. Defectives Size 5 20 11 0 20 2 4 20 12 2 20 20 13 20 N W 20 14 20 2 20 15 20 20 16 NW AOUA WI 20 20 17 20 20 18 20 O W N W 20 19 20 10 20 20 2 20