Developing Acceptance Sampling Plans based on Incapability Index Cpp
نویسندگان
چکیده
منابع مشابه
Designing different Sampling Plans Based on Process Capability Index
Acceptance sampling plan is a method to make decision on either accepting or rejecting a specific lot or more generally to inspect the quality of products that can be used by different methods. Along with this, one suitable measure to improve manufacturing processes is to analyze process capability indices. These indices have many applications in production environments. In this paper, a repeti...
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Reliability acceptance sampling plans (RASPs) are used to determine the acceptability of a collection of units (e.g., a lot) with respect to lifetime. Most of the previous works on RASPs assume that life tests are conducted at the use or accelerated conditions. For high-reliability units, however, adopting life tests may easily turn out to be impractical in terms of the sample size and the amou...
متن کاملIncapability Index with Asymmetric Tolerances
Greenwich and Jahr-Schaffrath (1995) introduced an index Cpp, a simple transformation of the index C∗ pm, which provides an uncontaminated separation between information concerning the process accuracy and process precision. Unfortunately, the index Cpp inconsistently measures process capability in many cases and thus reflects process potential and performance inaccurately. In this paper, we co...
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In this paper, acceptance sampling plans are developed for the odds exponential log logistic distribution (OELLD) introduced by Rosaiah et al. [1] based on lifetime percentiles when the life test is truncated at a predetermined time. The minimum sample size necessary to ensure the specified lifetime percentile is obtained under a given customer’s risk. The operating characteristic values of the...
متن کاملMultiple dependent state sampling plans for lot acceptance based on measurement data
This paper proposes a multiple dependent (or deferred) state sampling plan by variables for the inspection of normally distributed quality characteristics. The decision upon the acceptance of the lot is based on the states of the preceding lots (dependent state plan) or on the states of the forthcoming lots (deferred state plan). The lot acceptance probability is derived and the two-point appro...
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ژورنال
عنوان ژورنال: Applied Mathematics & Information Sciences
سال: 2014
ISSN: 1935-0090,2325-0399
DOI: 10.12785/amis/080548