14 articles for “Small Sample Set”

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Research ArticleOpen accessIn the abstractPercentile Double Ranked Set SamplingAmer Ibrahim Al-Omari, Khalifa H. JaberIn this paper, percentile double ranked set sampling (PDRSS) method is suggested for estimating the population mean. The PDRSS method is compared with the simple random sampling (SRS), ranked set sampling (RSS), median ranked set sampling (MRSS) and the extreme ranked set sampling (ERSS) methods. When the underlying distribution is symmetric, it turns out that PDRSS produce unbiased estimators of … …Journal of Mathematics and Statistics, Vol. 4, Issue 1 · 31 Mar 2008 · 7,411 accessesView PDF Cite

Research ArticleOpen accessIn the abstractMultistage Median Ranked Set Sampling for Estimating the Population MedianAbdul Aziz Jemain, Amer Al-Omari, Kamarulzaman IbrahimWe modify RSS to come up with new sampling method, namely, Multistage Median Ranked Set Sampling (MMRSS). The MMRSS was suggested for estimating the population median and to increase the efficiency of the estimator for specific value of the sample size. The MMRSS was compared to the Simple Random Sampling (SRS), Ranked Set Sampling (RSS) and Median Ranked Set Sampling … …Journal of Mathematics and Statistics, Vol. 3, Issue 2 · 30 Jun 2007 · 7,143 accessesView PDF Cite

Research ArticleOpen accessIn the abstractDeveloping of Stage Ornament Creation for Enhancing Economic Value Added in Isan CommunityPattamawadee Chansuwan, Suphanni Luaboonchu, Terdchai PantachiProblem statement: Several communities in northeast Thailand are creative and productive sources of stage ornaments but they cannot expand their markets according to the changes of customer requirements. Approach: This research aimed to investigate 3 point. (1) To investigate the background of stage ornament creation in Isan (northeast) community in the past. (2) To investigate the situation and difficulties of … …Journal of Social Sciences, Vol. 5, Issue 4 · 31 Dec 2009 · 7,434 accessesView PDF Cite

Research ArticleOpen accessAll words, across the recordCassava Chip Drying by Using a Small-Scale Hot-Air Microwave OvenPatomsok WilaiponCharacteristics of cassava microwave hot-air drying were investigated in a 2-planes microwave hot-air dryer. The drying experiments were carried out at two levels of sample surface temperature set-points viz. 70 and 80°C respectively. Cassava (Rayong-9) with 2.5 kg weight and 61% moisture content on wet basis was dried in the dryer for about 5-5.3 h. It was found that the … …American Journal of Engineering and Applied Sciences, Vol. 6, Issue 2 · 6 Jun 2013 · 7,569 accessesView PDF Cite