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3D-bootstrap - Konfidensintervall för guldfyndigheter
Umeå University, Faculty of Science and Technology, Department of Mathematics and Mathematical Statistics.
2014 (Swedish)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

This paper deals with evaluating 3D-bootstrap for the mining company New Boliden in an attempt to revise their current method of calculating average gold riches in different areas. The purpose is to find one-sided 3D-bootstrap confidence bound of the average gold riches. There lacks well-defined theory behind using 3D-bootstrap, in this paper the variogram is used as an estimate of dependencies between the observations, and the block length is chosen to be higher than this estimate. In aid of this, a simulated data material is conducted to check the validity of 3D-bootstrap in a controlled area where the theoretical value is known. The results are inconclusive, and further studies are needed.

Place, publisher, year, edition, pages
2014. , 26 p.
Keyword [sv]
bootstrap, spatial block-bootstrap, 3D-boostrap, konfidensintervall, spatial statistik.
National Category
Probability Theory and Statistics
URN: urn:nbn:se:umu:diva-86723OAI: diva2:703252
Educational program
Bachelor of Science in Physics and Applied Mathematics
Available from: 2014-03-26 Created: 2014-03-05 Last updated: 2014-03-26Bibliographically approved

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Probability Theory and Statistics

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