For an x-bar chart, R-bar is defined as?
A) Sample range
B) Sample mean
C) Mean of sample means
D) Mean of sample ranges

Name: For an x-bar chart, R-bar is defined as? A) Sample range B) Sample mean C) Mean of sample means D) Mean of sample ranges
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Question

Quizplus · Accepted Answer

R-bar (Range-bar) is the average range of the subgroups in a sample in an x-bar control chart. It is calculated by dividing the total range of all subgroups by the total number of subgroups.

For an X-Bar Chart, R-Bar Is Defined As