Process Capability Index and Sigma Analysis. A study to determine the extent of the actual process variation against that required or specified.

Design Of Experiment (DOE), is a statistical experimentation approach that enables understanding of how the variables (Factors) in a process contribute and interact to affect the output (Response) of that process.

Anova Analysis, is a statistical method for understanding the similarities and differences between different distributions.

Regression Analysis, is to determine if there are relationships between two or more variables.

t test, the test is used for comparing two samples and checking if they came from the same population.

f test, is test of whether two samples are drawn from different populations have the same standard deviation, with specified confidence level. Samples may be of different sizes.

Normality test, is used to determine whether a random variable is normally distributed or not.

Chi Square Test, is a statistical test used to examine differences with categorical variables.