The F-distribution, also known Fisher-Snedecor distribution, is used to test for equality of variances from two normal populations.
What is the probability of a defect? What statistical tools could you use to identify the probability of a defect occurring?
A Chi-Square goodness of fit test tells how well a categorical (nominal or ordinal) sample distribution fit into a hypothetical distribution.
The chi square (χ2) distribution is the best method to test a population variance against a known or assumed value of the population variance
In the Analyze phase of DMAIC, we want to use the 6M’s in Six Sigma (Six Ms or 5Ms and one P or 5M1P). This helps root out defects.