New transformed estimators in stratified random sampling: A case study on rubber production in Thailand
Estimating the rubber production in Thailand, the world’s leading rubber supplier, can help the Thai government to prepare for rubber cultivation in policy planning. A transformation technique can be used to improve the efficiency of estimating the average rubber yield by reducing the biases and m...
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| Format: | Article |
| Language: | English |
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Prince of Songkla University
2024-06-01
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| Series: | Songklanakarin Journal of Science and Technology (SJST) |
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| Online Access: | https://sjst.psu.ac.th/journal/46-3/1.pdf |
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| author | Natthapat Thongsak Nuanpan Lawson |
| author_facet | Natthapat Thongsak Nuanpan Lawson |
| author_sort | Natthapat Thongsak |
| collection | DOAJ |
| description | Estimating the rubber production in Thailand, the world’s leading rubber supplier, can help the Thai government to
prepare for rubber cultivation in policy planning. A transformation technique can be used to improve the efficiency of estimating
the average rubber yield by reducing the biases and mean square error. A group of population mean estimators has been
suggested under stratified random sampling utilizing a transformed auxiliary variable. The biases and mean square errors of the
proposed estimators are investigated. Simulation studies and an application to rubber production data in Thailand have been
applied to assess their performances under stratified random sampling where the yield of rubber varies depending upon the
region. The results show that the estimates of rubber yields with the proposed estimators had small biases and mean square
errors. The best estimator gave an estimated rubber production of 1,140 kilogram/hectare, which is close to the population mean
of the yields of rubber. |
| format | Article |
| id | doaj-art-a0cef79463bf4fdebba925c30f814a83 |
| institution | OA Journals |
| issn | 0125-3395 |
| language | English |
| publishDate | 2024-06-01 |
| publisher | Prince of Songkla University |
| record_format | Article |
| series | Songklanakarin Journal of Science and Technology (SJST) |
| spelling | doaj-art-a0cef79463bf4fdebba925c30f814a832025-08-20T01:58:12ZengPrince of Songkla UniversitySongklanakarin Journal of Science and Technology (SJST)0125-33952024-06-01463246255New transformed estimators in stratified random sampling: A case study on rubber production in ThailandNatthapat Thongsak0Nuanpan Lawson1State Audit Office of the Kingdom of Thailand, Phaya Thai, Bangkok, 10400 ThailandDepartment of Applied Statistics, Faculty of Applied Science, King Mongkut’s University of Technology North Bangkok, Bang Sue, Bangkok, 10800 ThailandEstimating the rubber production in Thailand, the world’s leading rubber supplier, can help the Thai government to prepare for rubber cultivation in policy planning. A transformation technique can be used to improve the efficiency of estimating the average rubber yield by reducing the biases and mean square error. A group of population mean estimators has been suggested under stratified random sampling utilizing a transformed auxiliary variable. The biases and mean square errors of the proposed estimators are investigated. Simulation studies and an application to rubber production data in Thailand have been applied to assess their performances under stratified random sampling where the yield of rubber varies depending upon the region. The results show that the estimates of rubber yields with the proposed estimators had small biases and mean square errors. The best estimator gave an estimated rubber production of 1,140 kilogram/hectare, which is close to the population mean of the yields of rubber.https://sjst.psu.ac.th/journal/46-3/1.pdfrubber productionstratified random samplingtransformed auxiliary variablebiasmean square error |
| spellingShingle | Natthapat Thongsak Nuanpan Lawson New transformed estimators in stratified random sampling: A case study on rubber production in Thailand Songklanakarin Journal of Science and Technology (SJST) rubber production stratified random sampling transformed auxiliary variable bias mean square error |
| title | New transformed estimators in stratified random sampling: A case study on rubber production in Thailand |
| title_full | New transformed estimators in stratified random sampling: A case study on rubber production in Thailand |
| title_fullStr | New transformed estimators in stratified random sampling: A case study on rubber production in Thailand |
| title_full_unstemmed | New transformed estimators in stratified random sampling: A case study on rubber production in Thailand |
| title_short | New transformed estimators in stratified random sampling: A case study on rubber production in Thailand |
| title_sort | new transformed estimators in stratified random sampling a case study on rubber production in thailand |
| topic | rubber production stratified random sampling transformed auxiliary variable bias mean square error |
| url | https://sjst.psu.ac.th/journal/46-3/1.pdf |
| work_keys_str_mv | AT natthapatthongsak newtransformedestimatorsinstratifiedrandomsamplingacasestudyonrubberproductioninthailand AT nuanpanlawson newtransformedestimatorsinstratifiedrandomsamplingacasestudyonrubberproductioninthailand |