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vti_metatags:VR|HTTP-EQUIV=Content-Type text/html;\\ charset=iso-8859-1 citation_author OYEKA,\\ I.\\ C.A, citation_author UMEH,\\ E.U citation_title STATISTICAL\\ ANALYSIS\\ OF\\ PAIRED\\ SAMPLE\\ DATA\\ BY\\ RANKS citation_pdf_url http://www.sjpub.org/sjms/sjms-102.pdf citation_year 2012 citation_online_date 2012 citation_journal_title Science\\ Journal\\ of\\ Mathematics\\ and\\ Statistics citation_abstract This\\ paper\\ developed\\ a\\ rank\\ based\\ test\\ statistic\\ for\\ testing\\ the\r\r\nequality\\ of\\ two\\ population\\ medians.\\ Instead\\ of\\ taking\\ the\r\r\ndifferences\\ between\\ pairs\\ of\\ observations\\ and\\ using\\ these\r\r\ndifferences\\ with\\ the\\ signs\\ test\\ or\\ taking\\ the\\ absolute\\ values\\ of\r\r\nthese\\ differences\\ assigning\\ them\\ ranks\\ and\\ applying\\ the\\ Wilcoxon\r\r\nsigned\\ sum\\ rank\\ test,\\ one\\ may\\ first\\ assign\\ ranks\\ to\\ members\\ of\r\r\nthe\\ paired\\ observations\\ then\\ used\\ them\\ to\\ develop\\ a\\ rank\\ –\\ based\r\r\ntest\\ statistic\\ for\\ testing\\ the\\ equality\\ of\\ two\\ populations.\\ From\\ the\r\r\nabove\\ result,\\ the\\ proposed\\ method\\ is\\ observed\\ to\\ be\\ more\r\r\nefficient\\ than\\ the\\ Wilcoxon\\ Signed\\ rank\\ sum\\ test\\ which\\ in\\ turn\\ is\r\r\nmore\\ efficient\\ than\\ the\\ ordinary\\ sign\\ test\\ since\\ it\\ uses\\ all\\ available\r\r\ninformation\\ quite\\ unlike\\ the\\ ordinary\\ Sign\\ test\\ and\\ Wilcoxon\r\r\nsigned\\ rank\\ sum\\ test\\ that\\ ignores\\ zero\\ differences.\\ Also\\ it\\ was\r\r\nobserved\\ that\\ it\\ had\\ an\\ added\\ advantage\\ over\\ these\\ ones\\ since\\ it\r\r\nenables\\ the\\ statistical\\ comparison\\ of\\ the\\ medians\\ of\\ two\\ related\r\r\npopulations\\ that\\ are\\ measurements\\ on\\ as\\ low\\ as\\ the\\ ordinal\\ scale. dc.rights http://creativecommons.org/licenses/by/3.0/ citation_volume 2012 citation_publisher Science\\ Journal\\ Publication citation_issn 2276-6324 citation_abstract_html_url 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