Question: The x-chart would be useful when we a. took a number of measurements and computed the average. took a number of measurements and computed the

The x-chart would be useful when we a.

took a number of measurements and computed the average.

  1. took a number of measurements and computed the ranges.
  2. found the fraction of the production lot defective.
  3. found the number of defective items in a production lot. e.

None of the above

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