... more concentration is required. The application of hypothesis testing in productivity maintenance should be promoted by parametric test and significantly instrumental in explanation of phenomena. It is also indispensable to better understand quality data and provide guidance to production control...

... chambers as depicted in Figure 1 . Figure 1 Temperature–voltage combinations in constant-stress pattern The constant-stress ADDT proceeds as follows: Accelerated destructive degradation test Wiener process Inverse Gaussian distribution Variance optimality criterion Hypothesis...