When the $\bar { x }$ control chart shows a repeated series of small observations followed by large observations,the result is referred to as:
A) a cycle.
B) a trend.
C) a level shift.
D) instability.

Question

Quizplus · Accepted Answer

A cycle refers to a repeated pattern of variation in the data, such as alternating small and large observations, which is what is described in the scenario.

When The xˉ\bar { x }xˉ Control Chart Shows a Repeated Series of Small Observations Followed

When The $\bar { x }$ Control Chart Shows a Repeated Series of Small Observations Followed