Sampling with statistical process control in quality system

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Reference no: EM134026665

Questions

1. Describe and discuss Plato's divided line in terms the forms of awareness.

2. What are the seven tools of management and how management uses these seven tools effectively?

3. An assembly line consists for 4 subsystems with the following reliabilities:

P1=0.998

P2=0.997

P3=0.988

P4=0.990

What is the reliability of the assembly line system?

4. A component has a reliability that fits the exponential distribution. The Mean Time Between Failure for the component is 2500 cycles. What is the probability that the component will not fail before 7500 cycles?

5. What is the service life associated with a probability of 0.10, with a mean of 20 months and a standard deviation of 2 months?

Chapter 11

1. Discuss the integration of acceptance sampling with statistical process control in a quality system.

2. Why is it important that a sample taken from a lot be random?

3. What is meant by the term "statistically valid"?

4. Discuss the information to be obtained from the OC curve for a particular sampling plan.

5. How can a quality engineer make the OC curve closer to the ideal shape?

6. Discuss the significance of the difference between AQL and LTPD.

7. What method of sampling would be most appropriate when the population consists of two categories of members in unequal numbers?

8. Discuss the circumstances where cluster sampling would be appropriate.

9. What are "switching rules" and why are they important?

10. What are some of the risks associated with using systematic sampling?

11. What is the difference between simple random sampling and stratified random sampling? When might stratified random sampling be appropriate?

12. Why might 100 percent inspection not result in zero defective products in a lot?

13. What are the conditions that would make 100 percent inspection infeasible?

14. Why do quality experts say that statistical process control (SPC) is preferable to acceptance sampling?

15. Explain the differences between ANSI/ASQ Z1.4 and ANSI/ASQ Z1.9.

16. Explain the difference between Type I and Type II errors.

Reference no: EM134026665

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