The lifetime performance index is a popular quantitative method to describe products quality. This study constructs statistical analysis methods of assessing the lifetime performance index of products with Rayleigh distribution under progressively type II right censored samples. The maximum likelihood estimator of the lifetime performance index is derived by applying the large sample theory, and then a testing procedure about the lifetime performance index is developed. This procedure will provide manufacturers a benchmark to assess whether or not the products performance meets .
An example is used to illustrate the implementation of the testing procedure.