In this video, Dr. Richard Chua explains how to test for correlation when conducting a Six Sigma project.
- Have you ever wondered if the amount of coffee…consumed on the morning of a test…affects the outcome of your test score?…Or is there a relationship between…the price of apples and the price of gas?…What I'm really asking is, is there a correlation?…In Six Sigma projects we're interested in seeing…and analyzing how potential axis impact Y.…Is there a relationship between X and Y?…And if there is, is it a…statistically significant relationship?…That's when a Correlation Hypothesis Test is needed.…
In Green Belt Training, you'll learn that…when there a relationship between two variables…we say there is correlation.…The strength of the relationship in quantified…but the Correlation Coefficient…or Pearson Correlation Coefficient.…It can range from minus one to plus one…and if there is no correlation the…coefficient is zero or close to zero.…The correlation and coefficient are positive…if one variable increases as the other increases.…
With a maximum positive correlation of plus one.…And the coefficient is negative…
Dr. Richard Chua builds upon his Six Sigma: Green Belt, Six Sigma Foundations, and Learning Minitab courses—which are prerequisites to this course—and covers an array of topics, including measurement system analysis, hypothesis testing, response surface methods, displaying improved process capabilities, and more.
- Process flow metrics
- Measurement system analysis
- Calculating process capability
- Hypothesis testing
- Confidence intervals
- Testing for normality
- Designing, conducting, and analyzing full-factorial experiments
- Using fractional factorial experiments for screening
- Displaying improved process capability
Skill Level Intermediate
1. Define Phase
Overview of the Define phase3m 51s
2. Measure Phase
3. Analyze Phase
4. Improve Phase
5. Control Phase
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