Search Results - ("variaci" OR "variance")
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Hypothesis test for changes in variance using a statistic based in P-values in a time series of normal independent observations.
Published 2015“…The present work proposes a Hypothesis Test to detect a shift in the variance of a series of independent normal observations using a statistic based on the p-values of the F distribution. …”
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Hypothesis test for changes in variance using a statistic based in P-values in a time series of normal independent observations.
Published 2015“…The present work proposes a Hypothesis Test to detect a shift in the variance of a series of independent normal observations using a statistic based on the p-values of the F distribution. …”
Get full text
Tesis -
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Evolución y eficiencia relativa de los mercados bursátiles de MENA: evidencia de pruebas de índice de varianza conjunta móvil: Evolving and relative efficiency of MENA stock markets: evidence from rolling joint variance ratio tests
Published 2014Subjects: “…Variance Ratio Tests…”
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Diseño para Seis Sigma: Enfoque para la fiabilidad y fabricación de bajo costo
Published 2012Subjects: “…Analysis of Variance (ANOVA)…”
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Estudio del ITS nuclear en algunas especies del género Cantharellus de México
Published 2004“…Las especies del gÈnero Cantharellus son de gran importancia econÛmica y ecolÛgica. Sin embargo, la variaciÛn morfolÛgica inter e intraespecÌfica de este gÈnero ha dificultado la ubicaciÛn taxonÛmica de algunas de sus especies, incluyendo la especie tipo. …”
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Analysis of multiple change-points in normally distributed series
Published 2013“…A change is considered as one of the three different cases: (1) change only in mean parameter, (2) change only in variance parameter or (3) change in both parameters. …”
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Analysis of multiple change-points in normally distributed series
Published 2013“…A change is considered as one of the three different cases: (1) change only in mean parameter, (2) change only in variance parameter or (3) change in both parameters. …”
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Análisis de un circuito hidráulico de circulación natural para el enfriamiento de un fluido
Published 2016“…Se consider´o un circuito hidr´aulico formado por dos serpentines interconectados entre s´ı, de di´ametro y volumen constante, lleno de un fluido newtoniano, espec´ıficamente agua con propiedades constantes, excepto la densidad, cuya variaci´on es dependiente de la temperatura y fue calculada mediante una ecuaci´on polinomial…”
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Análisis de un circuito hidráulico de circulación natural para el enfriamiento de un fluido
Published 2016“…Se consider´o un circuito hidr´aulico formado por dos serpentines interconectados entre s´ı, de di´ametro y volumen constante, lleno de un fluido newtoniano, espec´ıficamente agua con propiedades constantes, excepto la densidad, cuya variaci´on es dependiente de la temperatura y fue calculada mediante una ecuaci´on polinomial…”
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Modelling the Density of Inflation Using Autoregressive Conditional Heteroscedasticity, Skewness, and Kurtosis Models
Published 2011“…The results revealed the significant persistence in conditional variance, skewness and kurtosis which indicate high asymmetry of inflation. …”
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Análisis del rendimiento del torneado utilizando coeficiente de vida útil en relación al volumen de metal cortado
Published 2016“…Keywords: High speed turning, stainless steel AISI 316L, flank wear, variance and regressions analysis, volume of the cut metal.…”
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Income divergence between mexican states in the 1990s: the role of skill premium
Published 2006“…During the period 1940–1985 the variance of average incomes across Mexican states fell by 60 percent. …”
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Body image perception in Mexican university athletes VS non-athletles
Published 2014“…The results of the one-way multivariate analysis of variance, followed by the one-way univariate analyses of variance, show that university students who don’t participate in a regular sport are the ones who show thicker models for their present, ideal and social figure, in addition to demonstrating higher body size dissatisfaction. …”
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A gender study of self-efficacy perceived in Socio-cultural environment in Mexican university students in the health area
Published 2014“…The results of the one-way multivariate analysis of variance, followed by the one-way univariate analyses of variance, showed that women reported significant higher punctuations than men regarding the perceived self-efficacy in promotion of the culture and cultural identity (p< .001). …”
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Young Mexican physical self – concept gender comparisons
Published 2014“…Results of the one-way multivariate analysis of variance, followed by the one-way univariate analysis of variance, showed that in comparison among women, men obtained higher scores on the health, coordination, activity, sports competence, strength, flexibility, endurance, global physical self-concept and global self-esteem subscales. …”
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