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The false alarm rate is _______ when small number of subgroups is used for the Shewhart control charts.

The false alarm rate is _______ when small number of subgroups is used for the Shewhart control charts. Correct Answer Increased

The number of subgroups used in calculating the trial control limits for Shewhart control charts, impacts the false alarm rate of the chart. This rate is inflated when small number if subgroups is used.

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