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Hypothesis Testing: Decision Tree
Below is a decision tree for the most commonly used hypothesis tests: The post Hypothesis Testing: Decision Tree appeared first on Six Sigma Daily.
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Type I and Type II Errors in Hypothesis Testing
There are four possible outcomes when making hypothesis test decisions from sample data. Two of these outcomes are correct in that the sample accurately represents the population and leads to a correct...
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Cause and Effect Diagram
A Cause and Effect Diagram is a graphical tool for displaying a list of causes associated with a specific effect. It is also known as a fishbone diagram or an Ishikawa diagram (created by Dr. Kaoru...
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Check Sheets: Five Basic Types
The Check Sheet is a simple document that is used for collecting data in real time and at the location where the data is generated. The document is typically a blank form that is designed for the...
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Cell Intervals: Rules of Thumb
When constructing a histogram (a graph in which the classes are identified on the horizontal axis and the class frequencies are shown on the vertical axis by the heights of the vertical bars) it is...
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Cell Intervals: Impact on Shape
The choice of Cell Intervals (the number and width of the classes used to construct a histogram) can have an effect on the shape of the histogram. In general, a smaller number of intervals results in a...
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Histograms and Collected Data Sets
Histograms are used to show the distribution of a set of collected data. Generic bar charts can be created for any type of categorical or numerical data. If the categories of the data plotted in a bar...
View ArticleBrainstorming
Brainstorming is a method for generating a large number of creative ideas in a short period of time. Brainstorming is full of energy, moves rapidly, and is synergistic, creating a large list of ideas...
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DPMO to Sigma Level Relationship
The following table will convert Defects Per Million Opportunities or DPMO to a Sigma Level. The post DPMO to Sigma Level Relationship appeared first on Six Sigma Daily.
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Six Sigma Tools: DPU, DPMO, PPM and RTY
Four common measures of process performance are Defects Per Unit (DPU), Defects per Million Opportunities (DPMO), Parts per Million Defective (PPM), and the Rolled Throughput Yield (RTY). The key to...
View ArticleGuest Post – 4 Ways Lean Manufacturing Impacts Business Productivity and...
Written by: Bryan Christiansen Every opportunity to increase equipment and labor efficiency within a manufacturing facility improves its productivity and revenue. For this reason, companies are...
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Guest Post: The Synergies of Lean Six Sigma and Human Centered Design
Written by: Michael Parent Lean Six Sigma (LSS) is entering a new era. The nature of work is changing and has already changed. Workers are remote. Processes no longer just produce physical widgets, but...
View ArticleEarth Day and Lean Six Sigma
The business world has increased its focus on sustainability issues amid harrowing predictions on climate change as well as increased investor concerns about how private enterprises factor the planet’s...
View ArticleProcess Improvement Helps Businesses Avoid the Cost-Cutting Death Spiral
In business, a cost-cutting death spiral is something that unfortunately occurs with regularity. It’s a “one bad decision follows another” scenario that starts with executives looking for ways to keep...
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Total Productive Maintenance
In a nutshell: Total Productive Maintenance (TPM) is a methodology designed to integrate equipment maintenance as a part of the standard operating procedures of the manufacturing process. Use: The goal...
View ArticleWhat Is Total Productive Maintenance?
Total Productive Maintenance (TPM) focuses on reducing the amount of downtime for equipment, one of the biggest sources of revenue loss in all industries. TPM calls for integrating maintenance as part...
View ArticleQuality Magazine’s Professional of the Year is a Six Sigma Master Black Belt
John Vandenbemden, named the 2022 Quality Professional of the Year by Quality Magazine, is an auditor, consultant and quality expert. He’s also a Six Sigma Master Black Belt. Over four decades of work,...
View ArticleWhat Is the Role of a Project Sponsor?
Who Is a Project Sponsor? A project needs sufficient resources, planning, support, and collaboration to succeed. This is where a project sponsor comes in. They are a part of the project from the start...
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FMEA Failure Modes and Effects Analysis
A Failure Modes and Effects Analysis (FMEA) identifies potential failures within a system or process and classifies them by likelihood of occurrence and potential severity. It is then used to find...
View ArticleEli Lilly CFO Says Process Mode Failure Analysis Important for Business Strategy
The modern business environment requires that companies have the ability to react quickly to unexpected changes. It’s a situation that has led some corporate leaders to include possible worst-case...
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