Academic MBA Question:
Case Study: You are attempting to develop a quality monitoring system for some parts purchased from PerfectParts Manufacturing Co. These parts are either good or defective. During each delivery a sample of 500 units is sampled and the number of defective units in the sample is noted. The average defect rate is 3.5%.
a. Develop the upper and lower control limits (z=3). (5
Marks)
b. What is process capability index and what will be your
objective in finding the process capability? (5 Marks)