Questions from Total Quality Management

Q: Explain the conditions under which a u-chart would be used

Explain the conditions under which a u-chart would be used instead of a c-chart.

Q: Explain why a p- or c-chart is not appropriate

Explain why a p- or c-chart is not appropriate for highly conforming processes.

Q: A quality improvement program has been instituted in an organization to reduce

A quality improvement program has been instituted in an organization to reduce total quality costs. Discuss the impact of such a program on prevention, appraisal, and failure costs.

Q: Distinguish between 3σ limits and probability limits. When would you consider

Distinguish between 3σ limits and probability limits. When would you consider constructing probability limits?

Q: Meeting customer due dates is an important goal. What attribute or

Meeting customer due dates is an important goal. What attribute or variables control charts would you select to monitor? Discuss the underlying assumptions in each case.

Q: Explain the setting under which a U-chart would be used

Explain the setting under which a U-chart would be used. How does the U-chart incorporate the user’s perception of the relative degree of severity of the different categories of defects?

Q: What are the advantages and disadvantages of control charts for attributes over

What are the advantages and disadvantages of control charts for attributes over those for variables?

Q: Discuss the significance of an appropriate sample size for a proportion-

Discuss the significance of an appropriate sample size for a proportion-nonconforming chart.

Q: The CEO of a company has been charged with reducing the proportion

The CEO of a company has been charged with reducing the proportion nonconforming of the product output. Discuss which control charts should be used and where they should be placed.

Q: How does changing the sample size affect the center line and the

How does changing the sample size affect the center line and the control limits of a p-chart?