The testing of high-dimensional normality is an important issue and has been intensively studied in the literature, it depends on variance–covariance matrix sample numerous methods have proposed to reduce its complexity. Principle component analysis (PCA) widely used high dimensions, since can project data into a lower-dimensional orthogonal space. reduced then be evaluated by Jarque–Bera (JB) ...

Tadeusz Robak,1 Jerzy Windyga,2 Jacek Trelinski,1 Mario von Depka Prondzinski,3 Aristoteles Giagounidis,4 Chantal Doyen,5 Ann Janssens,6 María Teresa Álvarez-Román,7 Isidro Jarque,8 Javier Loscertales,9 Gloria Pérez Rus,10 Andrzej Hellmann,11 Wiesław Wiktor Jêdrzejczak,12 Kazimierz Kuliczkowski,13 Lana M. Golubovic,14 Dusica Celeketic,15 Andrei Cucuianu,16 Emanuil Gheorghita,17 Mihaela Lazaroiu...

introduction: non-uniformity test is essentially the only required daily qc procedure in nuclear medicine practice. noise creates statistical variation or random error in a flood image. non-uniformity on the other hand does not have statistical nature and may be regarded as systemic error. the present methods of non-uniformity calculation do not distinguish between these two types of error. the...

1. Benavides FG, Gimeno D, Benach J, Martínez JM, Jarque S, Berra A, et al. Descripción de los factores de riesgo psicosocial en cuatro empresas. Gac Sanit. 2002;16:222--9. 2. García-Rodríguez A, Gutiérrez-Biedmar M, Bellón-Saameño JA, Muñoz-Bravo C, Fernández-Crehuet J. Entorno psicosocial y estrés en trabajadores sanitarios de la sanidad pública: diferencias entre atención primaria y hospital...

We address the problem of recognizing α-stable Lévy distribution with Lévy index close to 2 from experimental data. We are interested in the case when the sample size of available data is not large, thus the power law asymptotics of the distribution is not clearly detectable, and the shape of the empirical probability density function is close to a Gaussian. We propose a testing procedure combi...

Four sets of experimental data were investigated in terms of normal distribution and presence of outliers. The following sets of compound were investigated: blood-brain barrier partitioning (n=105), inhibitory activity of para-substituted aromatic sulfonamides (n=47), inhibition activity of taxoids (n=63), and estrogen receptor binding affinity of triphenilacrylonitriles (n=25). The normality o...

This study examined the relationship between budgeted capital and health sector performance in South West Nigeria. The adopted statistical tools to analyse data that were sourced from approved budget estimates of six Western States. descriptive statistics showed on an average level, all selected expenditures contributed approximately 99.9% their budgetary allocations. Jarque-Bera test reveals a...

We consider parametric estimation of the continuous part a class ergodic diffusions with jumps based on high-frequency samples. Various papers previously proposed threshold methods, which enable us to distinguish whether observed increments have or not at each small-time interval, hence estimate unknown parameters separately. However, data-adapted and quantitative choice parameter is known be s...