{"id":875,"date":"2023-07-28T11:27:02","date_gmt":"2023-07-28T11:27:02","guid":{"rendered":"https:\/\/statorials.org\/tr\/z-puani-pythonunun-p-degeri\/"},"modified":"2023-07-28T11:27:02","modified_gmt":"2023-07-28T11:27:02","slug":"z-puani-pythonunun-p-degeri","status":"publish","type":"post","link":"https:\/\/statorials.org\/tr\/z-puani-pythonunun-p-degeri\/","title":{"rendered":"Python&#39;da z puan\u0131ndan p de\u011feri nas\u0131l bulunur?"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">\u0130statistiklerde genellikle bir <a href=\"https:\/\/statorials.org\/tr\/hipotez-testi-1\/\" target=\"_blank\" rel=\"noopener\">hipotez testinden<\/a> elde edilen belirli bir z-puan\u0131 ile ili\u015fkili <a href=\"https:\/\/statorials.org\/tr\/p-degerleri-istatistiksel-anlamlilik\/\" target=\"_blank\" rel=\"noopener\">p-de\u011ferini<\/a> belirlemek isteriz. E\u011fer bu p de\u011feri belli bir anlaml\u0131l\u0131k seviyesinin alt\u0131ndaysa hipotez testimizin s\u0131f\u0131r hipotezini reddedebiliriz.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Python&#8217;da z puan\u0131yla ili\u015fkili p de\u011ferini bulmak i\u00e7in a\u015fa\u011f\u0131daki s\u00f6zdizimini kullanan <a href=\"https:\/\/docs.scipy.org\/doc\/scipy\/reference\/generated\/scipy.stats.norm.html\" target=\"_blank\" rel=\"noopener\">scipy.stats.norm.sf() i\u015flevini<\/a> kullanabiliriz:<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>scipy.stats.norm.sf(abs(x))<\/strong><\/span><\/p>\n<p> <span style=\"color: #000000;\">Alt\u0131n:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\"><strong>x:<\/strong> z puan\u0131<\/span><\/li>\n<\/ul>\n<p> A\u015fa\u011f\u0131daki \u00f6rnekler, sol tarafl\u0131 bir test, sa\u011f tarafl\u0131 bir test ve iki kuyruklu bir test i\u00e7in z puan\u0131yla ili\u015fkili p de\u011ferinin nas\u0131l bulunaca\u011f\u0131n\u0131 g\u00f6stermektedir.<\/p>\n<h3> <strong>Sol test<\/strong><\/h3>\n<p> <span style=\"color: #000000;\">Solak bir hipotez testinde <strong>-0,77<\/strong> z puan\u0131yla ili\u015fkili p de\u011ferini bulmak istedi\u011fimizi varsayal\u0131m.<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #107d3f;\">import<\/span> scipy.stats\n\n<span style=\"color: #008080;\">#find p-value<\/span>\nscipy.stats.norm.sf(abs(-0.77))\n\n0.22064994634264962\n<\/strong><\/pre>\n<p data-slot-rendered-dynamic=\"true\"> <span style=\"color: #000000;\">P de\u011feri <strong>0,2206&#8217;d\u0131r<\/strong> . E\u011fer \u03b1 = 0,05 anlaml\u0131l\u0131k d\u00fczeyini kullan\u0131rsak, bu p de\u011feri 0,05&#8217;ten az olmad\u0131\u011f\u0131ndan hipotez testimizin s\u0131f\u0131r hipotezini reddetmede ba\u015far\u0131s\u0131z olaca\u011f\u0131z.<\/span><\/p>\n<h3> <strong>Do\u011fru test<\/strong><\/h3>\n<p> <span style=\"color: #000000;\">A\u015f\u0131r\u0131 sa\u011f hipotez testinde <strong>1,87<\/strong> z puan\u0131yla ili\u015fkili p de\u011ferini bulmak istedi\u011fimizi varsayal\u0131m.<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #107d3f;\">import<\/span> scipy.stats\n\n<span style=\"color: #008080;\">#find p-value<\/span>\nscipy.stats.norm.sf(abs(1.87))\n\n0.030741908929465954\n<\/strong><\/pre>\n<p data-slot-rendered-dynamic=\"true\"> <span style=\"color: #000000;\">P de\u011feri <strong>0,0307&#8217;dir<\/strong> . E\u011fer \u03b1 = 0,05 anlaml\u0131l\u0131k d\u00fczeyini kullan\u0131rsak, bu p de\u011feri 0,05&#8217;ten k\u00fc\u00e7\u00fck oldu\u011fundan hipotez testimizin bo\u015f hipotezini reddederiz.<\/span><\/p>\n<h3> <strong>\u0130ki tarafl\u0131 test<\/strong><\/h3>\n<p> <span style=\"color: #000000;\">\u0130ki kuyruklu bir hipotez testinde <strong>1,24<\/strong> z puan\u0131yla ili\u015fkili p de\u011ferini bulmak istedi\u011fimizi varsayal\u0131m.<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #107d3f;\">import<\/span> scipy.stats\n\n<span style=\"color: #008080;\">#find p-value for two-tailed test<\/span>\nscipy.stats.norm.sf(abs(1.24))*2\n\n0.21497539414917388\n<\/strong><\/pre>\n<p data-slot-rendered-dynamic=\"true\"> <span style=\"color: #000000;\"><em>Bu iki tarafl\u0131 p de\u011ferini bulmak i\u00e7in tek tarafl\u0131 p de\u011ferini ikiyle \u00e7arpmam\u0131z yeterlidir.<\/em><\/span><\/p>\n<p data-slot-rendered-dynamic=\"true\"> <span style=\"color: #000000;\">P de\u011feri <strong>0,2149&#8217;dur<\/strong> . E\u011fer \u03b1 = 0,05 anlaml\u0131l\u0131k d\u00fczeyini kullan\u0131rsak, bu p de\u011feri 0,05&#8217;ten az olmad\u0131\u011f\u0131ndan hipotez testimizin s\u0131f\u0131r hipotezini reddetmede ba\u015far\u0131s\u0131z olaca\u011f\u0131z.<\/span><\/p>\n<p data-slot-rendered-dynamic=\"true\"> <em><span style=\"color: #000000;\"><strong>\u0130lgili:<\/strong> P de\u011ferlerini bulmak i\u00e7in bu \u00e7evrimi\u00e7i P de\u011feri Z puan\u0131 hesaplay\u0131c\u0131s\u0131n\u0131 da kullanabilirsiniz.<\/span><\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u0130statistiklerde genellikle bir hipotez testinden elde edilen belirli bir z-puan\u0131 ile ili\u015fkili p-de\u011ferini belirlemek isteriz. E\u011fer bu p de\u011feri belli bir anlaml\u0131l\u0131k seviyesinin alt\u0131ndaysa hipotez testimizin s\u0131f\u0131r hipotezini reddedebiliriz. Python&#8217;da z puan\u0131yla ili\u015fkili p de\u011ferini bulmak i\u00e7in a\u015fa\u011f\u0131daki s\u00f6zdizimini kullanan scipy.stats.norm.sf() i\u015flevini kullanabiliriz: scipy.stats.norm.sf(abs(x)) Alt\u0131n: x: z puan\u0131 A\u015fa\u011f\u0131daki \u00f6rnekler, sol tarafl\u0131 bir test, sa\u011f [&hellip;]<\/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-875","post","type-post","status-publish","format-standard","hentry","category-rehber"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Python&#039;da Z puan\u0131ndan P de\u011feri nas\u0131l bulunur - Statorials<\/title>\n<meta name=\"description\" content=\"Python&#039;da z-puan\u0131ndan p-de\u011ferinin nas\u0131l bulunaca\u011f\u0131na dair basit bir a\u00e7\u0131klama.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/statorials.org\/tr\/z-puani-pythonunun-p-degeri\/\" \/>\n<meta property=\"og:locale\" content=\"tr_TR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Python&#039;da Z puan\u0131ndan P de\u011feri nas\u0131l bulunur - 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