Case study questions: 1. How can Murarka find out if the process involved in the premium express scheme is under statistical control? 2. Explain in detail an approach Murarka could take to identify the major causes for the delay in shipment. How she can determine the route causes? 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? Good luck!