1. What are statistical tolerance limits? Explain how they differ from natural tolerance limits.
2. Is it possible for a process to be in control and still produce nonconforming output? Explain. What are some corrective measures under these circumstances?
3. What are the advantages of having a process spread that is less than the specification spread? What should the value of Cp be in this situation? Could Cpk be ≤ 1 here?