Abstract
Abstract In this paper, one indicators of process capability Cpm has was calculated on the basis of limits of specifications. The determination of the target was also done to estimate the components that depend on the prior distribution of the standard information. A comparison with the classic approach depending on the sample information only was given. The study was applied to the characteristics of (PH) in groundwater quality in Sinjar and TalA’far districts in Mosul and compared them with the standard specifications of (PH).
