Multiple choice six-sigma green-belt

Which one of the following is not true

  1. Control limits are given by customer

  2. Control limits are calculated from the data

  3. Control limits change when there is a significant change in the process

  4. Control limits represent the voice of the process
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A Correct answer
Explanation

Control limits are calculated statistically from the process data (the 'voice of the process'). Specification limits, on the other hand, are provided by the customer (the 'voice of the customer'). Therefore, the statement that control limits are given by the customer is false.

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