Nonparametric tests for ordinal, interval and ratio types of data

Nonparametric tests and applications are explained in detail along with relevant examples. This will be useful for master black belt students and professionals practicing lean sigma methodolgy in their oegabisation. For more on his works and support from him RK, visit his websites rksir.com , rksir.com, rkmaths.net, topsixsigma.com