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For an X-Bar Chart Where the Standard Deviation Is Known

Question 28

Multiple Choice

For an x-bar chart where the standard deviation is known, the Upper Control Limit


A) is 3 . σ below the mean of sample means for a 3σ control chart
B) is 3 . σ above the mean of sample means for a 3σ control chart
C) is 3 . σ/ For an x-bar chart where the standard deviation is known, the Upper Control Limit A) is 3 . σ below the mean of sample means for a 3σ control chart B) is 3 . σ above the mean of sample means for a 3σ control chart C) is 3 . σ/ below the mean of sample means for a 3σ control chart D) is 3 . σ/ above the mean of sample means for a 3σ control chart E) Cannot be calculated unless the average range is known. below the mean of sample means for a 3σ control chart
D) is 3 . σ/ For an x-bar chart where the standard deviation is known, the Upper Control Limit A) is 3 . σ below the mean of sample means for a 3σ control chart B) is 3 . σ above the mean of sample means for a 3σ control chart C) is 3 . σ/ below the mean of sample means for a 3σ control chart D) is 3 . σ/ above the mean of sample means for a 3σ control chart E) Cannot be calculated unless the average range is known. above the mean of sample means for a 3σ control chart
E) Cannot be calculated unless the average range is known.

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