Explains that the shifts of a process may be classified into a set of modes (or classifications), each of which is incurred by an assignable cause. Presents an algorithm to determine the process shift mode and estimate the run length when an out‐of‐control status is signalled by the x ‐ or...

Proposes Bayesian life test sampling plan for non‐repairable products with exponential lifetime distribution, which are sold under a warranty policy. It is assumed that the parameter of the lifetime distribution is a random variable varying from lot to lot according to a known prior...