A ___________ is a set of process observations that are examined for the purpose of constructing control charts.
A)Subgroup
B)Sample
C)Zone
D)List of common causes

Question

Quizplus · Accepted Answer

A subgroup is a small sample of process observations that are collected together for the purpose of creating control charts. Control charts are used to monitor a process and identify any changes that may indicate the presence of special causes of variation, which can be investigated and removed to improve process performance. Subgroups are typically selected based on the frequency of data collection, the size of the process being monitored, and the expected variation in process outputs. Once a sufficient number of subgroups have been collected, they can be used to construct a control chart that provides insights into process performance over time.

A ___________ Is a Set of Process Observations That Are