Phase II control charts for monitoring dispersion when parameters are estimated
نویسندگان
چکیده
منابع مشابه
Synthetic Phase II Shewhart-type Attributes Control Charts When Process Parameters are Estimated
The performance of attributes control charts (such as c and np charts) is usually evaluated under the assumption of known process parameters (i.e., the nominal proportion of nonconforming units or the nominal number of nonconformities). However, in practice, these process parameters are rarely known and have to be estimated from an in-control phase I data set. In this paper, we derive the run l...
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ژورنال
عنوان ژورنال: Quality Engineering
سال: 2017
ISSN: 0898-2112,1532-4222
DOI: 10.1080/08982112.2017.1288915