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Estadistica no Parametrica: Aplicada a las Ciencias de la Conducta [Sidney Siegel] on *FREE* shipping on qualifying offers. Contenido: • El uso. Palabras clave: t-Student, distribución de normalidad, estadística. . Desde otra óptica se ha usado estadística no paramétrica en muestras grandes cuando la. Traducción de: Non Parametric Statistics for the Behavioral Sciences Estudio acerca de la inferencia estadística aplicada a las pruebas de hipótesis, en razón .

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Kruskal-Wallis test, negative binomial distribution, Box-Cox transformations, Thrips palmi, Solanum tuberosum. Basta tener en cuenta las propiedades de la normal que ya se vieron en su momento. Estudiaremos cada uno de los apartados mencionados aunque no paramstrica en el orden en el que aparecen en el cuadro anterior. The direction was changed in each sampling.

Ecological methods with particular reference of the study of insect populations.

Prueba exacta de Fisher

Fifteen plants were randomly selected from each plot by following the diagonal. Muestreo secuencial para la toma de decisiones de control de Thrips palmi en papa en Cuba. Las distintas posibilidades son. A tal valor obtenido de la muestra se le denomina estimador.

However, it may affect variance homogeneity mainly when there is a great difference in the number of observations in the groups or treatments. Data transformation With the adjustment of the negative binomial distribution, data were transformed through the following expressions: One of them was selected as an experimental area with five plots of 20 x 20 m.

This reduced the number of classes, which was not greater than three; at least four classes were needed to fit this distribution.

The X 2 test was used for the goodness-of-fit of negative binomial distribution and as a test of independence to investigate the relationship between plant strata and insect stages.

To compare insect population densities between plant strata, ANOVA is usually used, but if fitted data have a negative binomial distribution, fulfilling the variable normality assumption is discarded. Una cota inferior para la varianza viene dada por la denominada cota de Cramer-Rao.


Chapman and Hall, London, UK. Box-Cox transformations and nonparametric statistical methods are commonly used as alternatives to solve this problem.

Es obvio que este valor no es el contenido exacto de cada una de las botellas, sino que se trata de un contenido medio. Consideraremos criterios adicionales para seleccionar estimadores. In this paper, we describe the results of applying parametgica techniques to data from Thrips palmi Karny sampled in potato Solanum tuberosum L. If these conditions are not fulfilled, the statistical analysis of the results can be invalidated De Calzadilla et al.


The results obtained from applying statistical-methodological criteria and combining non-parametric statistical methods with data transformations allowed selecting the insect larval stage parametroca plant middle stratum as the key elements to design sampling plans for parametrida pest. Los valores muestrales X 1Termites in sugar cane in Northeast Brazil: Crop areas sown with the Fregat irrigation system in paramertica form Annals of Mathematical Statistics33, De Calzadilla et al.

Jurnal Biosains 18 2: Utilizaremos la cuasi-varianza muestral como estimador por estadkstica buenas propiedades. En caso contrario se dice que es sesgado y a la cantidad se la denomina sesgo. Seven data transformations were also applied to meet the requirements of classical ANOVA, which failed to eliminate the relationship between mean and variance. The lack of normality of errors is parameetrica little importance in Fisher’s F-test from ANOVA because it is a robust parmaetrica in the presence of deviations of this assumption.

Data from all three seasons were combined in a single set and the samples considered as estadisticaa from the same population were tested for homogeneity by Taylor’s Power Law TPL regression slopes and intercepts and by an analysis of covariance to compare regression lines Cabrera et al. Data of agricultural pest populations do not generally fulfill the basic assumptions to apply parametric statistical methods because they are essentially discrete.

The test of nonparametric multiple comparisons was used when necessary according to Conoverwho proposes using the usual parametric procedure, Fisher’s least significant difference, which is computed on ranks instead of data.

Besides, there are leaves in this level that, given their age, could be more adequate to guarantee food for the insect in larval stages Suris and Plana, ; Tobing, ; Varga et al, Seven data transformations were tested based on the fit of negative binomial distribution and variance heterogeneity inside the aggregate spatial pattern of this insect species and of the close relationship between the variance and the mean from the fit to the TPL Cabrera, Larval and adult food preferences of the poinsettia thrips Echinothrips americanus Morgan, Thysanoptera: Journal of Pest Science This deserves special estwdistica because the first transformation is one of those most applied to data from insect populations and sometimes without verifying a priori and a posteriori the fulfillment of the assumptions.


Estadistica parametrica y no parmetrica by alberto diaz on Prezi

University of North Carolina Press. Tropical Pest Management Analyzing data from agricultural pest populations regularly detects that they do not fulfill the theoretical requirements to implement classical ANOVA.

The values of k and b correspond to the parameter of the negative binomial distribution and the regression coefficient of Taylor’s Power Law TPL as calculated by Cabrera This explains why the variables are not generally adjusted to the normal distribution but to binomial, negative binomial, and Poisson discrete probabilistic distributions according to the spatial pattern of the individuals in their habitat Sokal and Rohlf, Los resultados permitieron seleccionar el estado larval del insecto y el estrato medio de la planta como elementos claves para disenar planes de muestreo para esta plaga.

Nevertheless, many researchers do not know that they are subjected to fulfilling theoretical assumptions, such as normality, variance homogeneity, and no correlation between errors. Therefore, the analyses between categories should take into account the combination of both.

Sea X una variable aleatoria con f.

The parametric statistical methods are widespread and well-known and are the most used in these studies.