Nonrandom variation is indicated when a point is observed that is outside the control limits,or a run test produces a large z-value.What is this a sign of?
A)Excessive random variation
B)Assignable variation
C)The process is in control
D)The control limit is incorrect
E)More samples are required.

Question

Quizplus · Accepted Answer

When a point is observed outside the control limits or a run test produces a large z-value, it is an indication of assignable variation, meaning that there is a specific factor causing the deviation from the normal range of variation. This indicates that the process is not in control and requires investigation to identify and eliminate the assignable cause(s) of variation.

Nonrandom Variation Is Indicated When a Point Is Observed That