Santiago-Omar Caballero-Morales

Sep 4, 2024 | scirp.org | Santiago-Omar Caballero-Morales |Abdur Rahim

Z0 is the expected search time associated with a false alarm (false positive detection of the “out-of-control” state) while Z1 is the expected search and repairing time associated with a true alarm. a and b are the fixed cost per sample and the cost per unit sample respectively. D0 is the expected production cost (per hour) of nonconforming items if the process is “in control” state. D1 is the expected production cost of nonconforming items if the process is in an “out-of-control” state (D1 > D0).