- Inspection procedure consists of testing one sample of 100 items every day. For eight days, the cumulative number of defective items found was 134. Construct a p Chart using Z = 3.
- 36 machine parts are inspected each day. Average width of these parts is 3.0 inches. Standard deviation of the process is 0.1 inch. Calculate the upper and lower control limits of X-bar chart using the value of Z = 3.