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OCN Level 2 in SPC
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Topic 10
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When to use an XmR Chart
When to use an XmR Chart
Click <a href="https://www.euromotor.org/pluginfile.php/1389/mod_resource/content/0/content/xmr_intro02.html" >xmr_intro02.html</a> link to view the file.
When to use an XmR Chart
◄ Introduction to Individual & Moving Range (XmR) Charts
Jump to...
Jump to...
Beadboard
Beadboard Help
Variation
What is a Process?
Process Improvement
Satistical Process Control (SPC)
Defect Detection (1)
Defect Detection (2)
Defect Prevention
Common Causes of Variation
Special Causes of Variation
Variation Example (1)
Variation Example (2)
Variation Example (3)
Variation Example (4)
Variation Example (5)
Causes of Variation
Monitoring Variaton
What is SPC?
The Specifications Approach to Variation
The Test / Rework / Scrap Cycle
100% Inspection is Not Enough
Results Measures vs. Process Measures
Statistical Process Control is...
Monitoring the Process
Control Limits
Using Graphs
Interpreting the Data (1)
Interpreting the Data (2)
Interpreting the Data (3)
The History of SPC
Controlled & Uncontrolled Variation (1)
Controlled & Uncontrolled Variation (2)
Control Charts
Dr. Deming
Deming in Japan
Causes of Variation
Special Causes of Variation
SPC is Not Restricted to Manufacturing
Statistics in SPC
Probability Theory
Inspection
Inspection (2)
Sampling
Probability Theory (2)
Sampling (2)
Variable Data
Attribute Data
Frequency of Samples
Samples only provide estimates
Normal Distribution
Normal Distribution (2)
Standard Deviation
The Empirical Rule
Empirical Rule Demonstration (1)
Empirical Rule Demonstration (2)
Empirical Rule Demonstration (3)
Empirical Rule Demonstration (4)
Empirical Rule Demonstration (5)
Empirical Rule Demonstration (6)
Empirical Rule Demonstration (7)
Control Limits
Control Charts
Introduction to Control Charts
Process Control Charts
Interpreting Data from a Table
Interpreting Data from a Run Chart
The Voice of the Process
Control Limits
Types of Control Chart
Variable Data
Attribute Data
Attribute Data (2)
Variable Charts
Attribute Charts
Analysis & Interpretation
So We've Got These Control Charts...
...But What Do They Show Us?
Variability during Statistical Control
Highlighting Special Causes
Is the Process in Statistical Control?
Points Outside the Control Limits
Other Indications of Special Causes
Trends
Runs
Non-Random Patterns
Introduction to Capability
Some Useful Terms
Capability Studies
Capability Indices
Safety Margins
C
p
Calculating C
p
C
pk
Calculating C
pk
Introduction to Mean & Range Charts
What is the Mean & Range Chart?
Anatomy of a Mean and Range Chart
Alternative Layout for a Mean & Range Chart
How to Plot Mean & Range Charts
Sample Mean and Range Chart
Control Limits
Chart Plotting Exercise (1)
Chart Plotting Exercise (2)
Chart Plotting Exercise (3)
Chart Plotting Exercise (4)
Chart Plotting Exercise (5)
Chart Plotting Exercise (6)
Chart Plotting Exercise (7)
Chart Plotting Exercise (8)
Chart Plotting Exercise (9)
What to Do with a Mean & Range Chart
Summary
How to Prepare a Mean & Range Chart
First Steps in Preparing a Mean & Range Chart
Chart Preparation Exercise (1)
Chart Preparation Exercise (2)
Chart Preparation Exercise (3)
Chart Preparation Excercise (4)
Chart Preparation Excercise (5)
Chart Preparation Excercise (6)
Chart Preparation Excercise (7)
Chart Preparation Excercise (8)
Chart Preparation Excercise (9)
Chart Preparation Excercise (10)
Chart Preparation Excercise (11)
Chart Preparation Excercise (12)
Chart Preparation Excercise (13)
Chart Preparation Excercise (14)
Capability
Capability Exercise (1)
Capability Exercise (2)
Capability Exercise (3)
Capability Exercise (4)
Capability Exercise (5)
C
p
& C
pk
Capability Exercise (6)
Capability Exercise (7)
Capability Exercise (8)
Capability Exercise (9)
Introduction to Individual & Moving Range (XmR) Charts
The Anatomy of an XmR Chart
How to Plot XmR Charts
The Project
Information in the Chart Headings
The Three Graphs
The Data Collection Areas
Chart Plotting Exercise (1)
Chart Plotting Exercise (2)
Chart Plotting Exercise (3)
Chart Plotting Exercise (4)
Chart Plotting Exercise (5)
Chart Plotting Exercise (6)
Chart Plotting Exercise (7)
Chart Plotting Exercise (8)
Chart Plotting Exercise (9)
Chart Plotting Exercise (10)
Chart Plotting Exercise (11)
Chart Plotting Exercise (12)
Chart Plotting Exercise (13)
Chart Plotting Exercise (14)
Chart Plotting Exercise (15)
Summary
How to Prepare an XmR Chart
Chart Preparation Exercise (1)
Chart Preparation Exercise (2)
Chart Preparation Exercise (3)
Chart Preparation Exercise (4)
Chart Preparation Exercise (5)
Chart Preparation Exercise (6)
Chart Preparation Exercise (7)
Chart Preparation Exercise (8)
Chart Preparation Exercise (9)
Chart Preparation Exercise (10)
Chart Preparation Exercise (11)
Chart Preparation Exercise (12)
Chart Preparation Exercise (13)
Capability
Capability Exercise (1)
Capability Exercise (2)
Capability Exercise (3)
Capability Exercise (4)
C
p
vs. C
pk
Capability Exercise (4)
Capability Exercise (5)
Capability Exercise (6)
Capability Exercise (6)
Introduction to Number of Defects per Unit (u) Charts
What is a u-Chart?
What kind of data is recorded on a u-Chart?
But what about the Control Limits?
Defects and Defectives
Problems with Attribute Data
Anatomy of a u-Chart
How to plot a Number of Defects per Unit (u) Chart
Control Limits on a u-Chart
Chart Plotting Exercise (1)
Chart Plotting Exercise (2)
Chart Plotting Exercise (3)
Chart Plotting Exercise (4)
Chart Plotting Exercise (5)
Chart Plotting Exercise (6)
Chart Plotting Exercise (7)
Chart Plotting Exercise (8)
Chart Plotting Exercise (9)
Chart Plotting Exercise (10)
Chart Plotting Exercise (11)
Chart Plotting Exercise (12)
Chart Plotting Exercise (14)
Summary
How to Prepare a u-Chart
Calculating Control Limits
Chart Preparation Exercise (1)
Chart Preparation Exercise (2)
Chart Preparation Exercise (3)
Chart Preparation Exercise (4)
Chart Preparation Exercise (5)
Chart Preparation Exercise (6)
Chart Preparation Exercise (7)
Chart Preparation Exercise (8)
Chart Preparation Exercise (9)
Chart Preparation Exercise (10)
Chart Preparation Exercise (11)
Chart Preparation Exercise (12)
Presenting Data
Presenting Data Example
Run Charts
Run Charts (2)
Presenting Data In Context
Presenting Data Graphically
Tally Charts
Tally Charts (2)
Tally Charts (3)
Tally Charts (4)
Tally Charts (5)
Tally Charts(6)
Histograms
Histograms (2)
Histograms (3)
Histograms (4)
Faults
Pareto Charts
Ogives
Ogives (2)
Ogives (3)
Ogives (4)
Summary
Pareto Analysis
Who was Pareto, and what is his Principle?
The Structure of a Pareto Chart
Gathering Data
Pareto Analysis Exercise (1)
Pareto Analysis Exercise (2)
Pareto Analysis Exercise (3)
Pareto Analysis Exercise (4)
Pareto Anlysis Exercise (5)
Pareto Analysis Exercise (6)
Pareto Analysis Exercise (7)
Pareto Analysis Exercise (8)
Pareto Analysis Exercise (9)
Pareto Anlysis Exercise (10)
Pareto Analysis Exercise (11)
Pareto Analysis Exercise (12)
Pareto Analysis Exercise (13)
The Anatomy of an XmR Chart ►