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Research Article
Online Published: 23 Nov 2018
 


IMPROVED CLASS OF RATIO-PRODUCT TYPE ESTIMATORS BY USING UNKNOWN WEIGHT

Singh, R. V. K., Ahmed, A., Onwuka, G. I., Babayemi, A. W. And Kumar, D..


Abstract
In this paper a class of ratio-type estimator has been proposed by using unknown constant to estimate population mean of the study variable. The proposed estimator includes a number of estimators. The particular cases of proposed estimator have been discussed. The expression for bias and the MSE of the proposed estimator were derived up to the first order of approximation. The efficiency of the proposed estimator has been compared with the estimators that are particular cases of proposed estimator and condition under which the proposed estimator is more efficient is derived. Appropriate Numerical illustrations are used to determine the efficiency of proposed estimator and existing estimators.

Key words: Bias, Efficiency, Estimator, Mean square error


 
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How to Cite this Article
Pubmed Style

Singh, K. RV, Ahmed , A. , Onwuka , I. G, Babayemi , Kumar AWA, D. . IMPROVED CLASS OF RATIO-PRODUCT TYPE ESTIMATORS BY USING UNKNOWN WEIGHT. Equijost. 2016; 4(1): 98-104.

Web Style

Singh, K. RV, Ahmed , A. , Onwuka , I. G, Babayemi , Kumar AWA, D. . IMPROVED CLASS OF RATIO-PRODUCT TYPE ESTIMATORS BY USING UNKNOWN WEIGHT. https://www.equijost.com/?mno=302643598 [Access: June 24, 2026].

AMA (American Medical Association) Style

Singh, K. RV, Ahmed , A. , Onwuka , I. G, Babayemi , Kumar AWA, D. . IMPROVED CLASS OF RATIO-PRODUCT TYPE ESTIMATORS BY USING UNKNOWN WEIGHT. Equijost. 2016; 4(1): 98-104.


Vancouver/ICMJE Style

Singh, K. RV, Ahmed , A. , Onwuka , I. G, Babayemi , Kumar AWA, D. . IMPROVED CLASS OF RATIO-PRODUCT TYPE ESTIMATORS BY USING UNKNOWN WEIGHT. Equijost. (2016), [cited June 24, 2026]; 4(1): 98-104.


Harvard Style

Singh, K., . R. V., Ahmed, ., A., ., Onwuka, ., I., . G., Babayemi, ., Kumar, . A. W. A. & D., . (2016) IMPROVED CLASS OF RATIO-PRODUCT TYPE ESTIMATORS BY USING UNKNOWN WEIGHT. Equijost, 4 (1), 98-104.


Turabian Style

Singh, R. V. K., Ahmed, A., Onwuka, G. I., Babayemi, A. W. And Kumar, and D.. 2016. IMPROVED CLASS OF RATIO-PRODUCT TYPE ESTIMATORS BY USING UNKNOWN WEIGHT. Equity Journal of Science and Technology, 4 (1), 98-104.


Chicago Style

Singh, R. V. K., Ahmed, A., Onwuka, G. I., Babayemi, A. W. And Kumar, and D.. "IMPROVED CLASS OF RATIO-PRODUCT TYPE ESTIMATORS BY USING UNKNOWN WEIGHT." Equity Journal of Science and Technology 4 (2016), 98-104.


MLA (The Modern Language Association) Style

Singh, R. V. K., Ahmed, A., Onwuka, G. I., Babayemi, A. W. And Kumar, and D.. "IMPROVED CLASS OF RATIO-PRODUCT TYPE ESTIMATORS BY USING UNKNOWN WEIGHT." Equity Journal of Science and Technology 4.1 (2016), 98-104. Print.


APA (American Psychological Association) Style

Singh, K., . R. V., Ahmed, ., A., ., Onwuka, ., I., . G., Babayemi, ., Kumar, . A. W. A. & D., . (2016) IMPROVED CLASS OF RATIO-PRODUCT TYPE ESTIMATORS BY USING UNKNOWN WEIGHT. Equity Journal of Science and Technology, 4 (1), 98-104.




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