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How to Select Subgroups
A fundamental aspect of SPC is to organize data samples into subgroups, or a set of data points collected from a process at approximately the same time under nearly identical conditions. Learn the three characteristics for determining subgroups and the four factors for setting subgroup size.
Course Videos
What Is SPC Statistical Process Control?
04:02
2SPC Step 1: Identify Critical Processes
04:08
3SPC Step 2: Collect Data
03:44
4How to Create a Sampling Plan
06:51
5How to Set Sample Sizes
05:40
6Understanding Measurement, Metrics, KPIs, and Data
07:10
7Variable Data
05:14
8Attribute Data
04:49
Current Video
How to Select Subgroups
06:08
Next VideoSPC Step 3: Analyze Data
06:07
11How to Select the Right Control Chart Type
05:51
12SPC Step 4: Identify Variation
06:18
13Common Cause vs Special Cause Variation
04:51
14SPC Step 5: Root Cause Corrective Action
03:21
15Managing with SPC
03:38
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