The process would be evaluated as stable when OA random cause of variation is present, but special cause of variation does not exist O random cause of variation is present, but the special cause of variation does not exist OC all variation in the process are of product type Op all variation in the process are of assignable type In order to ensure effective inventory management, it is not required to have reasonable estimates of: A Holding costs O Marketing costs Oc Ordering costs OD Shortage costs
