{"title":"Case of Preferential Selection of Attribute over Variable Control Charts in Trend Analysis of Microbiological Count in Water","authors":"M. Eissa, Engy Refaat Rashed, Dalia Essam Eissa","doi":"10.29329/actanatsci.2023.353.01","DOIUrl":null,"url":null,"abstract":"transformation using Microsoft Excel. Then, control charts were constructed using Statistical Process Control (SPC) software. The results showed that transformation improved data normalization for the Individual-Moving Range (I-MR) chart while the original pattern of the dataset was lost distorted. On the other hand, other advantages could be retained when using the Laney chart where no transformation was implemented on original raw data. The selection should be based on the nature of the process aim and condition.","PeriodicalId":142687,"journal":{"name":"Acta Natura et Scientia","volume":"8 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2023-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Acta Natura et Scientia","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.29329/actanatsci.2023.353.01","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
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Abstract
transformation using Microsoft Excel. Then, control charts were constructed using Statistical Process Control (SPC) software. The results showed that transformation improved data normalization for the Individual-Moving Range (I-MR) chart while the original pattern of the dataset was lost distorted. On the other hand, other advantages could be retained when using the Laney chart where no transformation was implemented on original raw data. The selection should be based on the nature of the process aim and condition.
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