The bootstrap analysis of one-way ANOVA stability in the case of the ceramic shell mould of airfoil blade casting / Agnieszka Szczotok, Jacek Nawrocki, Aneta Gądek-Moszczak, Maciej Kołomycki // W: Parametric ... więcej

The bootstrap analysis of one-way ANOVA stability in the case of the ceramic shell mould of airfoil blade casting / Agnieszka Szczotok, Jacek Nawrocki, Aneta Gądek-Moszczak, Maciej Kołomycki // W: Parametric and non-parametric methods of data analysis at multiscale modeling : selected, peer reviewed papers from the 11th World Congress on Computational Mechanics (WCCM XI), July 20-25, 2014, Barcelona, Spain / ed. by Agnieszka Szczotok, Jacek Pietraszek, Norbert Radek. – Pfäffikon : Trans Tech Publications Ltd, 2015. – (Solid State Phenomena, ISSN 1012-0394 ; 235). – S. 24-30 : rys., tab., wykr. – Bibliogr. 23 poz., Abstr., Summ. – Seria gł.: Diffusion and Defect Data, ISSN 0377-6883. – doi: 10.4028/www.scientific.net/SSP.235.24. – ISBN 978-3-03835-503-8

The analysis of variance (ANOVA) is a classic tool for an identification of discreet factors impact on the measurable output by a specific decomposition on a total variance according to the scheme proposed ... więcej

The analysis of variance (ANOVA) is a classic tool for an identification of discreet factors impact on the measurable output by a specific decomposition on a total variance according to the scheme proposed by R.A Fisher in the 1920s. There are many explicit and implicit assumptions required as a preliminary of ANOVA computations. The ANOVA computations scheme is well known and implemented in many types of software but all estimations are provided with the assumption of a normal and homoscedasticity distribution of the noise disturbing the output. Computation procedures produce a single number output (e.g. F statistics, p-Value) without any analysis of their own dispersion. This paper analyzes the ANOVA output using the bootstrap approach. It seems to be the most convenient as a data-driven procedure. The source raw data are taken from the image analysis conducted during the investigation of the impact of the ceramic layer thickness on the wax pattern assembly of a turbine blade on the (γ+γ’) eutectic in the IN713C superalloy.