<\/p>\n
\u00d6rnek da\u011f\u0131l\u0131mlar\u0131 normal da\u011f\u0131lmad\u0131\u011f\u0131nda ve \u00f6rnek boyutlar\u0131 k\u00fc\u00e7\u00fck oldu\u011funda (n < 30) iki \u00f6rnek aras\u0131ndaki farklar\u0131 kar\u015f\u0131la\u015ft\u0131rmak i\u00e7in<\/span> bir<\/span> Mann-Whitney U testi<\/strong><\/a> kullan\u0131l\u0131r.<\/p>\n \u0130ki \u00f6rnekli t testinin<\/strong><\/a> parametrik olmayan e\u015fde\u011feri olarak kabul edilir<\/span> .<\/span><\/p>\n Bu e\u011fitimde Python’da Mann-Whitney U testinin nas\u0131l ger\u00e7ekle\u015ftirilece\u011fi a\u00e7\u0131klanmaktad\u0131r.<\/span><\/p>\n Ara\u015ft\u0131rmac\u0131lar, yak\u0131t i\u015fleminin bir araban\u0131n ortalama mpg’sinde bir de\u011fi\u015fikli\u011fe neden olup olmad\u0131\u011f\u0131n\u0131 bilmek istiyor. Bunu test etmek i\u00e7in, yak\u0131t i\u015flemeli 12 araban\u0131n ve yak\u0131t i\u015flemesiz 12 araban\u0131n mpg’sini \u00f6l\u00e7t\u00fcler.<\/span><\/p>\n \u00d6rneklem boyutlar\u0131 k\u00fc\u00e7\u00fck oldu\u011fundan ve ara\u015ft\u0131rmac\u0131lar \u00f6rnek da\u011f\u0131l\u0131mlar\u0131n\u0131n normal da\u011f\u0131lmad\u0131\u011f\u0131ndan \u015f\u00fcphelendi\u011finden, iki grup aras\u0131nda mpg a\u00e7\u0131s\u0131ndan istatistiksel olarak anlaml\u0131 bir fark olup olmad\u0131\u011f\u0131n\u0131 belirlemek i\u00e7in Mann-Whitney U testi yapmaya karar verdiler.<\/span><\/p>\n Python’da Mann-Whitney U testi ger\u00e7ekle\u015ftirmek i\u00e7in a\u015fa\u011f\u0131daki ad\u0131mlar\u0131 tamamlay\u0131n.<\/span><\/p>\n Ad\u0131m 1: Verileri olu\u015fturun.<\/strong><\/span><\/p>\n \u00d6ncelikle her araba grubu i\u00e7in mpg de\u011ferlerini tutacak iki tablo olu\u015fturaca\u011f\u0131z:<\/span><\/p>\n Ad\u0131m 2: Mann-Whitney U testi yap\u0131n.<\/strong><\/span><\/p>\n Daha sonra, a\u015fa\u011f\u0131daki s\u00f6zdizimini kullanan bir Mann-Whitney U testi ger\u00e7ekle\u015ftirmek i\u00e7in scipy.stats k\u00fct\u00fcphanesindeki mannwhitneyu() fonksiyonunu<\/a> kullanaca\u011f\u0131z:<\/span><\/p>\n mannwhitneyu(x, y, use_continuity=Do\u011fru, alternatif=Yok)<\/strong><\/span><\/p>\n Alt\u0131n:<\/span><\/p>\n \u00d6zel \u00f6rne\u011fimizde bu fonksiyonun nas\u0131l kullan\u0131laca\u011f\u0131 a\u015fa\u011f\u0131da a\u00e7\u0131klanm\u0131\u015ft\u0131r:<\/span><\/p>\n Test istatisti\u011fi 50,0’d\u0131r<\/strong> ve kar\u015f\u0131l\u0131k gelen iki kuyruklu p de\u011feri 0,2114’t\u00fcr<\/strong> .<\/span><\/p>\n Ad\u0131m 3: Sonu\u00e7lar\u0131 yorumlay\u0131n.<\/strong><\/span><\/p>\n Bu \u00f6rnekte Mann-Whitney U testi a\u015fa\u011f\u0131daki bo\u015f ve alternatif hipotezleri kullan\u0131r:<\/span><\/p>\n H 0<\/sub> :<\/strong> MPG iki grup aras\u0131nda e\u015fittir<\/span><\/p>\n H A<\/sub> :<\/strong> MPG iki grup aras\u0131nda e\u015fit de\u011fil<\/em><\/span><\/p>\n P de\u011feri ( 0,2114<\/strong> ) 0,05’ten k\u00fc\u00e7\u00fck olmad\u0131\u011f\u0131ndan s\u0131f\u0131r hipotezini reddedemiyoruz.<\/span><\/p>\n Bu, ger\u00e7ek ortalama mpg’nin iki grup aras\u0131nda farkl\u0131 oldu\u011funu s\u00f6yleyecek yeterli kan\u0131t\u0131m\u0131z olmad\u0131\u011f\u0131 anlam\u0131na gelir.<\/span><\/p>\n A\u015fa\u011f\u0131daki e\u011fitimlerde farkl\u0131 istatistiksel yaz\u0131l\u0131mlarda Mann-Whitney U testinin nas\u0131l ger\u00e7ekle\u015ftirilece\u011fi a\u00e7\u0131klanmaktad\u0131r:<\/span><\/p>\n Excel’de Mann-Whitney U Testi Nas\u0131l Yap\u0131l\u0131r<\/a> \u00d6rnek da\u011f\u0131l\u0131mlar\u0131 normal da\u011f\u0131lmad\u0131\u011f\u0131nda ve \u00f6rnek boyutlar\u0131 k\u00fc\u00e7\u00fck oldu\u011funda (n < 30) iki \u00f6rnek aras\u0131ndaki farklar\u0131 kar\u015f\u0131la\u015ft\u0131rmak i\u00e7in bir Mann-Whitney U testi kullan\u0131l\u0131r. \u0130ki \u00f6rnekli t testinin parametrik olmayan e\u015fde\u011feri olarak kabul edilir . Bu e\u011fitimde Python’da Mann-Whitney U testinin nas\u0131l ger\u00e7ekle\u015ftirilece\u011fi a\u00e7\u0131klanmaktad\u0131r. \u00d6rnek: Python’da Mann-Whitney U testi Ara\u015ft\u0131rmac\u0131lar, yak\u0131t i\u015fleminin bir araban\u0131n ortalama mpg’sinde […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11],"tags":[],"class_list":["post-850","post","type-post","status-publish","format-standard","hentry","category-rehber"],"yoast_head":"\n \u00d6rnek: Python’da Mann-Whitney U testi<\/strong><\/span><\/h3>\n
group1 = [20, 23, 21, 25, 18, 17, 18, 24, 20, 24, 23, 19]<\/strong>\ngroup2 = [24, 25, 21, 22, 23, 18, 17, 28, 24, 27, 21, 23]<\/strong><\/pre>\n
\n
import<\/span> scipy.stats as<\/span> stats\n\n#perform the Mann-Whitney U test<\/span>\nstats. mannwhitneyu<\/span> (group1, group2, alternative=' two-sided<\/span> ')\n\n(statistic=50.0, pvalue=0.2114)\n<\/strong><\/pre>\n Ek kaynaklar<\/strong><\/span><\/h3>\n
R’de Mann-Whitney U testi nas\u0131l yap\u0131l\u0131r?
SPSS’de Mann-Whitney U Testi Nas\u0131l Yap\u0131l\u0131r?<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"