Optimised reduction of surgical gloves pinholes using forward search method

Ahmad, Azimah and Mohamed @ A.Rahman, Nur Anisah and Wahid, Zaharah (2021) Optimised reduction of surgical gloves pinholes using forward search method. Sains Malaysiana, 50 (12). pp. 3733-3744. ISSN 0126-6039 E-ISSN 2735-0118

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Abstract

This research investigates the factors during manufacturing process that affect the existence of pinholes in surgical gloves. The effects of eight variables on the number of pinholes were identified to determine the optimal condition to reduce the defects. Since there are multiple variables, a two-level fractional factorial design 28-4 were used to study the main effects and the first order interactions of the multiple variables. A multiple linear regression is used to model the data. This paper also examines the presence of influential points in the data using influential measures in linear regression such as Cook’s Distance, DFFITS, DFBETAS, Studentized Residual, Standardised Residual and Hadi's as well as the robust forward search. The impact of influential points is further assessed through deletion of potential influential points and model selection using adjusted R2, information criterion and stepwise selection to see whether influential points that significantly change the fit of the model exist.

Item Type:	Article (Journal)
Additional Information:	6526/94351
Uncontrolled Keywords:	Fractional Factorial Design, Influential Points, Multiple Linear Regression, Robust Forward Search, Stepwise Selection
Subjects:	Q Science > QA Mathematics > QA276 Mathematical Statistics
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering
Depositing User:	Dr. zaharah Wahid
Date Deposited:	09 Dec 2021 08:54
Last Modified:	05 Jan 2022 10:44
URI:	http://irep.iium.edu.my/id/eprint/94351

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