Hello, about the Study Case GATI: achieving quality excellence in shipment delivery, I need help with the calculations for the questions:

3. 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?

4.Murarka realized the customer claim was increasing, so they decided to raise their sample size by ten units every two weeks. Analyze the process performance based on this decision.

5.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?