A Recently Formulated Individual Control Chart Designed for Quality Control Applications within the Health-care Domain

Kadir, Dler H. and Saleh, Dlshad M. and Jamil, Dashty I. (2024) A Recently Formulated Individual Control Chart Designed for Quality Control Applications within the Health-care Domain. Cihan University-Erbil Scientific Journal, 8 (2). pp. 9-18. ISSN 2519-6979

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Abstract

Quality control charts are based on data that is also used for various statistical analyses, such as regression, time series analysis, and other types of analyses. This implies that the data used to create these charts may contain outliers, potentially compromising their accuracy. To eliminate any potential noise or pollution from the data, a researcher proposed using wavelet shrinkage with a threshold and comparing the resulting data with Shewart's individual chart. Based on this, a new quality control chart was proposed and built using a universal approach for assessing the level of thresholding, representing the individual chart for wavelet haar with soft and hard thresholding. Following that, a comparison was performed between them as well as with Shewart's individual chart. This letter's most significant conclusion is that, in addition to using two real data points—triglyceride, which was recorded by a laboratory blood analyzer in Al-Jumhuri and at the specialized Center for Cardiology Hospital in Erbil Governorate—it may be possible to use wavelet shrinkage with a threshold to address issues of noise or pollution when Shewart's individual chart was made and used. Moreover, the wavelet method effectively reduces deviation, as demonstrated in both sets of data.

Item Type: Article
Uncontrolled Keywords: Quality Control, Individual Chart, Wavelet Process, Laboratory Testing, Deviation
Subjects: H Social Sciences > H Social Sciences (General)
H Social Sciences > HD Industries. Land use. Labor > HD28 Management. Industrial Management
R Medicine > RA Public aspects of medicine > RA0421 Public health. Hygiene. Preventive Medicine
Divisions: Department of Accounting > Research papers
Depositing User: ePrints Depositor
Date Deposited: 20 Nov 2024 09:51
Last Modified: 20 Nov 2024 09:51
URI: https://eprints.cihanuniversity.edu.iq/id/eprint/2731

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