Explaining the Importance of Variability to Engineering Students

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dc.contributor	Universitat Politècnica de Catalunya. Departament d'Estadística i Investigació Operativa
dc.contributor	Universitat Politècnica de Catalunya. ADBD - Anàlisi de Dades Complexes per a les Decisions Empresarials
dc.contributor.author	Grima Cintas, Pedro
dc.contributor.author	Rodero de Lamo, Lourdes
dc.contributor.author	Tort-Martorell Llabrés, Xavier
dc.date	2015-07-09
dc.identifier.citation	Grima, P., Rodero, L., Tort-Martorell, J. Explaining the Importance of Variability to Engineering Students. "American statistician", 09 Juliol 2015.
dc.identifier.citation	0003-1305
dc.identifier.citation	10.1080/00031305.2015.1064478
dc.identifier.uri	http://hdl.handle.net/2117/83163
dc.language.iso	eng
dc.relation	http://www.tandfonline.com/doi/abs/10.1080/00031305.2015.1064478
dc.rights	info:eu-repo/semantics/openAccess
dc.rights	http://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subject	Àrees temàtiques de la UPC::Matemàtiques i estadística
dc.subject	Teaching
dc.subject	variability
dc.subject	engineering students
dc.subject	robust product
dc.subject	Wheatstone bridge
dc.subject	Estadística matemàtica -- Aplicacions
dc.subject	Enginyeria -- Ensenyament universitari
dc.title	Explaining the Importance of Variability to Engineering Students
dc.type	info:eu-repo/semantics/submittedVersion
dc.type	info:eu-repo/semantics/article
dc.description.abstract	One of the main challenges of teaching statistics to engineering students is to convey the importance of being conscious of the presence of variability and of taking it into account when making technical and managerial decisions. Often, technical subjects are explained in an ideal and deterministic environment. This article shows the possibilities of simple electrical circuits –the Wheatstone Bridge among them— to explain to students how to characterize variability, how it is transmitted and how it affects decisions. Additionally they can be used to introduce the importance of robustness by showing that taking into account the variability of components allows the design of cheaper products with greater benefits than if one were to simply apply formulas that consider variables as exact values. The results are quite unexpected, and they arouse the interest and motivation of students
dc.description.abstract	Peer Reviewed

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