10 mins: Definition of Control Chart-Attributes-np
10 mins: Types of Control Chart-Attributes-np
20 mins: Problem solving based on Control Chart-Attributes-np
10 mins: Discussion and Summary
1. From 20 samples of 200 items each, the number of defectives is recorded. Construct an np chart and check if the process is under control.
2. A packing process inspects 150 packages daily for 30 days, noting the number of defectives. Prepare an np chart.