By Design, a Required Dimension on a Part Is 0

question 17

Essay

By design, a required dimension on a part is 0.575 cm plus or minus 0.008 cm. Assume that the process producing this part is stable with a mean of 0.579 cm and standard deviation of 0.002 cm.
a. What are the specification limits on this part?
b. Compute the Cp index.
c. Compute the Cpk index.
d. Which index is a better measure of the process capability in this instance? Explain.

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Definitions:

Cognitive Dissonance Theory

The theory that we act to reduce the discomfort (dissonance) we feel when two of our thoughts (cognitions) are inconsistent. For example, when our awareness of our attitudes and of our actions clash, we can reduce the resulting dissonance by changing our attitudes.

Cognitive Dissonance

The mental discomfort experienced by a person who holds contradictory beliefs, ideas, or values at the same time.

Situational Attribution

The process of assigning the cause of behavior to environmental factors rather than to internal traits or motivations.

Role-Playing

A method or scenario in which individuals assume roles and act them out in a simulated context, often used in training, therapy, or educational settings.