Which of the Following Statements About Special Causes of Variation

question 13

Multiple Choice

Which of the following statements about special causes of variation is/are FALSE?

• A)It is the type of variation that we would hope to be able to detect so that it could be eliminated.
• B)It is variation that is added to common cause variation because of unpredictable disturbances that affect the normal functioning of the process from time to time.
• C)It is variation that is inherent to the process because of the many small causes that are always present in a process.
• D)Control charts are designed to give a signal when special causes of variation are present,so that action can be taken to find and remove the cause of the disturbance.
• E)As a result of a special cause,the result may be that the process mean,the process standard deviation,or both may have changed.

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