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Screening Experiments

Screening experiments are lower resolution designed experiments (DOE) for investigating main effects, usually involving several factors. Screening experiments often use Fractional Factorial designs. One of the methods used in the design and execution of experiments is...

Sample Statistic

In statistics, we calculate sample statistics as numerical values directly from a subset, or “sample,” of a larger population. We use these statistics to estimate or infer population characteristics because measuring every single member of a population is...

Sample Size

A well-determined sample size ensures that the research conclusions are valid and applicable to the larger population from which the sample was drawn. Table of contentsDefinition of Sample SizeWhy does the Size of the Sample Matters?Factors Influencing Sample Size...

Risk Priority Number (RPN) in FMEA

The Risk Priority Number represents a numerical scoring system used within Failure Modes and Effects Analysis (FMEA) to evaluate and rank potential failure modes. This assessment tool helps responsible teams prioritize risks and decide on corrective actions by...

Response Surface

A response surface is the surface of the expected value of an output or response modeled as a function of significant inputs. In statistics, response surface methodology (RSM) explores the relationships between several explanatory variables and one or more response...
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