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Advanced Search Results For "STATISTICAL sampling"

1 - 10 of 197,453 results for
 "STATISTICAL sampling"
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A Nonconventional Auxiliary Information Based Robust Class of Exponential-type Difference Estimators.

Publication Type:Academic Journal

Source(s):Mathematical Problems in Engineering. 9/19/2022, p1-13. 13p.

Abstract:This study proposes a new class of improved exponential-type difference estimators of finite population mean by using supplementary information of known median along with suitable combinations of the conventional and non-conventional measures of the au...

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Some Improved Classes of Estimators in Stratified Sampling Using Bivariate Auxiliary Information.

Publication Type:Academic Journal

Source(s):Journal of Probability & Statistics. 8/31/2022, p1-23. 23p.

Abstract:This manuscript considers some improved combined and separate classes of estimators of population mean using bivariate auxiliary information under stratified simple random sampling. The expressions of bias and mean square error of the proposed classes ...

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Calibration Approach for Variance Estimation of Small Domain.

Publication Type:Academic Journal

Source(s):Mathematical Problems in Engineering. 8/28/2022, p1-8. 8p.

Abstract:The population parameters are estimated using sample surveys. However, the current investigation's goal is to estimate subpopulations parameters such as total through a calibration approach. The proposed estimator's properties have been given under sim...

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Partial Randomized Response Model for Simultaneous Estimation of Means of Two Sensitive Variables.

Publication Type:Academic Journal

Source(s):Mathematical Problems in Engineering. 8/23/2022, p1-13. 13p.

Abstract:In this study, a new partial randomized response model (RRM) has been proposed for estimating the population mean of two quantitative sensitive variables simultaneously. The utility of proposed model under stratification is also explored. The efficienc...

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Research on Clustering Algorithm Based on Improved SOM Neural Network.

Publication Type:Academic Journal

Source(s):Computational Intelligence & Neuroscience. 8/10/2022, p1-7. 7p.

Abstract:Clustering algorithm is a statistical method to study sample classification. With the rapid development of science and technology, people have higher and higher requirements for data classification, so there are more and more researches on clustering i...

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Green Port Performance Assessment in the Egyptian Context.

Publication Type:Academic Journal

Source(s):AIN Journal. Jul2022, Issue 44, p16-30. 15p.

Abstract:يهدف هذا البحث إلى اختبار أداء الموانئ قبل وبعد تطبيق استراتيجية الموانئ الخضراء. لذلك ًا مع استخدمت الباحثة الفلسفة الوضعية في هذه الدراسة والمنهج االستنتاجي ألنهما أكثر توافق طبيعة البحث ومع ما يريد الباحث الوصول إليه. كما اتبع المنهج الكمي في جمع ال...

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The Optimal Acceptance Sampling Plan: Goal Programing Models.

Publication Type:Academic Journal

Source(s):Global Journal of economic & Business (GJEB). Jun2022, Vol. 12 Issue 3, p406-413. 8p.

Abstract:معاينةالقبول هي أ سلوب إحصائي يستخدم للمساعدةفي اتخاذالقراربقبول أورفضمنتج وفقا لعينة عشوائية من وحدات املنتج، وعندما يتم استخدام املعاينةبشكل صحيح تصبح وسيلةفاعلةللجودة.رقم القبول وقوام العينة هما الهدفان الرئيسيان ألي خطةملعاينةالقبول، تهدف ه ذه الدر...

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SOME IMPROVED ESTIMATORS FOR THE MEAN ESTIMATION UNDER STRATIFIED SAMPLING BY USING TRANSFORMATIONS.

Publication Type:Academic Journal

Source(s):Journal of Science & Arts. Jun2022, Vol. 22 Issue 2, p265-288. 24p.

Abstract:In this research, we proposed some new estimators of finite population mean by using the transformations of coefficient of variation, Cx, the coefficient of kurtosis, β2(x) and some real numbers in stratified random sampling without replacement scheme....

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A Novel and Improved Logarithmic Ratio-Product Type Estimator of Mean in Stratified Random Sampling.

Publication Type:Academic Journal

Source(s):Mathematical Problems in Engineering. 6/8/2022, p1-20. 20p.

Abstract:Population mean is an important characteristic from many perspectives in statistical methodology. In this connection, many separate ratio type estimators of population mean have been developed by the researchers to gain more precision and efficiency av...

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DIFFERENCE-CUM-EXPONENTIAL EFFICIENT ESTIMATOR OF POPULATION VARIANCE.

Publication Type:Academic Journal

Source(s):Journal of Science & Arts. Jun2022, Vol. 22 Issue 2, p367-374. 8p.

Abstract:In the current investigation, we have suggested a Difference Cum-Exponential Type Efficient Estimator of Population variance of the study variable using information on the auxiliary variable. Up to the first order of approximation, the proposed estimat...

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