نتایج جستجو برای: chi square tests

تعداد نتایج: 468254  

Journal: :hepatitis monthly 0
mohamad amin pourhoseingholi wu{tvoooveolg}egnenmi~ospm}smmsgssvweovgzoooo}esndsli~mv fm{es{u{ wo{wersit{eovemd{kaliwckengw{ti university of medical sciences, tehran, ir iran, ir iran +98-2122432515, [email protected]; wu{tvoooveolg}egnenmi~ospm}smmsgssvweovgzoooo}esndsli~mv fm{es{u{ wo{wersit{eovemd{kaliwckengw{ti university of medical sciences, tehran, ir iran, ir iran +98-2122432515, [email protected] ahmad reza baghestani department of mathematic, islamic azad university - south tehran branch, ir iran mohsen vahedi department of epidemiology and biostatistics, school of public health, tehran university of medical sciences, ir iran

2010

10.1 The Chi-square Goodness of Fit Test. The general area of nonparametric statistical inference deals with statistical procedures such as hypothesis testing, point estimation and confidence intervals in problems where the parent distribution has no known functional form. For one reason or another, the chi-square goodness of fit test is considered to be in this area, and so we present it here....

1985
JAMES H. STEIGER ALEXANDER SHAPIRO MICHAEL W. BROWNE

The multivariate asymptotic distribution of sequential Chi-square test statistics is investigated. It is shown that: (a) when sequential Chi-square statistics are calculated for nested models on the same data, the statistics have an asymptotic intercorrelation which may be expressed in closed form, and which is, in many cases, quite high; and (b) sequential Chi-square difference tests are asymp...

Journal: :Communications in Statistics - Simulation and Computation 1974

2010
Mark G. Low

The information inequality has been shown to be an effective tool for providing lower bounds for the minimax risk. Bounds based on the chisquare distance can sometimes offer a considerable improvement especially when applied iteratively. This paper compares these two methods in four examples including the bounded normal mean problem as well as obervations from a Poisson distribution.

Journal: :COMSIG review 1995
Antony Ugoni Bruce F. Walker

The Chi square test is a statistical test which measures the association between two categorical variables. A working knowledge of tests of this nature are important for the chiropractor and osteopath in order to be able to critically appraise the literature.

Journal: :American Journal of Orthodontics and Dentofacial Orthopedics 2016

Journal: :iranian journal of english for academic purposes 0
nahid yarahmadzehi chabahar maritime university amin saed english department, chabahar maritime university safarzade samani farzane chabahar maritime university, iran

the main concern of this study was communication strategies (css) which are used to compensate for communication breakdown. the goals of this study were to examine whether proficiency level of iranian students had any relationship with their choice of css. this research was descriptive in nature. the participants were 15 pre-intermediate and 14 intermediate efl learners between 16 to 21years ol...

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