This post is part 2 in the Center for Systems Improvement series on run charts. We discuss how variation is present in all processes and the two types of variation we are looking for in run chart interpretation - common cause and special cause variation. The use of run chart rules to differentiate between the two types of variation is introduced with an explanation of the run chart rule for trends. Subsequent posts will cover the other run chart rules.
Duration = 11 min. 27 sec.
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