Determining the Lifetime of CD-RWs Using Efficient Sampling on a Production Line

摘要

This work derives the intermittent batch size and sample size for product life testing on a production line. The sequential probability ratio test was adopted to determine the sample size, n, and the expected number of samples (ENS). An inverse chi-square approximation was used to determine the relationship between the degree of freedom, m―1, and the estimated range of σ~2 (ER σ~2 ) at various (1―α) levels of confidence. Consequently, ENS and m were used to determine the intermittent batch size, l. Finally, rewritable compact disks (CD-RWs) underwent testing to demonstrate the feasibility and effectiveness of the proposed efficient sampling approach.