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Sample size planning for the coefficient of variation from the accuracy in parameter estimation approach
; ...sample size planning is developed for the coefficient of variation, where the goal of the...confidence interval for the population coefficient of variation is sufficiently narrow...researchers planning a study where the coefficient of variation is of interest plan an...
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The Inequality Between the Coefficient of Determination and the Sum of Squared Simple Correlation Coefficients.
; The inequality between the coefficient of determination and the sum of two squared simple correlation coefficients in a two-variable regression model...relative measures. They are the relative coefficient of determination and the relative...
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SAS and SPSS macros to calculate standardized Cronbach's alpha using the upper bound of the phi coefficient for dichotomous items
; ...strictly parallel, the Cronbach's α coefficient provides a lower-bound estimate of true...improved by using the upper bound of coefficient φ. SAS and SPSS macros have been...estimating internal consistency. Cronbach's coefficient is the most widely used index to estimate...
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Coefficient of friction tester: Chemsultants International Network.(EQUIPMENT)(Brief Article)
; The COF-500 test platform is ideally suited to test the coefficient of friction of papers, films, foils, synthetic materials...The COF-500 is designed to meet the requirements of several Coefficient of Friction test methods, including ASTM D1894. Web: www...
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Tabular solution of the cubic equation: a transformation that reduces coefficient count to one greatly simplifies the task of finding roots.(Mechanical)
; ...into a simpler equation with only one coefficient. Such a transformation resembles those...transformations only reduce the number of coefficients from three to two, rather than to one...derived a formulation giving a single coefficient with a short table of roots. But it...
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The Correlation Coefficient: An Overview
; ...the y variable. This paper shows the relationships between the coefficient of determination, the multiple correlation coefficient, the covariance, the correlation coefficient and the coefficient of alienation, for the case of two related...
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Association of the blood/air partition coefficient of 1,3-butadiene with blood lipids and albumin. (Articles).
; ...indicated by the blood/air partition coefficient. We hypothesized that blood lipid compositions...associated with the blood/air partition coefficients of lipophilic toxic vapors such as 1...and albumin to the blood/air partition coefficient of butadiene. We collected blood samples...
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A new interpretation and derivation of the Gini coefficient
; We show that the Gini coefficient is a simple linear transformation...Keywords: Income inequality, Gini coefficient, Lorenz curve. JEL Classification: D31, D63. I. Introduction The Gini coefficient is widely used as a measure of income...
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Design a directional coupler using a sinusoidal coefficient
; ...on generalized sinusoidal coupling-coefficient theory. BROADBAND applications in...a generalized sinusoidal coupling coefficient along the length of the coupler. A variety of coupling coefficients has been tried in the past to synthesize...
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Influence of diffusion coefficient on chloride ion penetration of concrete structure.
; ...proposes a modified diffusion coefficient that considers the effect of chloride...evaporable water on the diffusion coefficient. A finite element method (FEM...based on the modified diffusion coefficient estimates chloride concentration...
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