3. Explain in detail an approach Murarka could take to identify the potential causes for the delay in shipment. Explain and show related method.

4. What is meant by process capability? How can Murarka determine if the new processes met the target defect proportion? What are your thoughts on improving the process?

5. Murarka realized the customer claim was increasing, so they decided to raise their sample size to 260 from week 15. If the number of complaints from weeks 15 to 20 are based on this sample size, analyze the process performance.

6. To ensure the process's performance, a sample took in week 21, and it was below the lower control limit. So what does Murarka need to do?