{"id":921,"date":"2023-07-28T07:42:32","date_gmt":"2023-07-28T07:42:32","guid":{"rendered":"https:\/\/statorials.org\/tr\/z-puaninin-p-degeri-r\/"},"modified":"2023-07-28T07:42:32","modified_gmt":"2023-07-28T07:42:32","slug":"z-puaninin-p-degeri-r","status":"publish","type":"post","link":"https:\/\/statorials.org\/tr\/z-puaninin-p-degeri-r\/","title":{"rendered":"R cinsinden z puan\u0131n\u0131n p de\u011feri nas\u0131l hesaplan\u0131r?"},"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 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.<\/span><\/p>\n<p> <span style=\"color: #000000;\">R&#8217;de z puan\u0131yla ili\u015fkili p de\u011ferini bulmak i\u00e7in a\u015fa\u011f\u0131daki s\u00f6zdizimini kullanan pnorm() i\u015flevini kullanabiliriz:<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>pnorm(q, ortalama = 0, sd = 1, alt.kuyruk = DO\u011eRU)<\/strong><\/span><\/p>\n<p> <span style=\"color: #000000;\">Alt\u0131n:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\"><strong>q:<\/strong> z puan\u0131<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>ortalama:<\/strong> normal da\u011f\u0131l\u0131m\u0131n ortalamas\u0131. Varsay\u0131lan de\u011fer 0&#8217;d\u0131r.<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>sd:<\/strong> Normal da\u011f\u0131l\u0131m\u0131n standart sapmas\u0131. Varsay\u0131lan de\u011fer 1&#8217;dir.<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>alt.kuyruk:<\/strong> DO\u011eRU ise <strong>q&#8217;nun<\/strong> normal da\u011f\u0131l\u0131mdaki sol olas\u0131l\u0131\u011f\u0131 d\u00f6nd\u00fcr\u00fcl\u00fcr. YANLI\u015e ise sa\u011fa olas\u0131l\u0131k d\u00f6nd\u00fcr\u00fcl\u00fcr. Varsay\u0131lan DO\u011eRU&#8217;dur.<\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">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.<\/span><\/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: #008080;\">#find p-value<\/span>\npnorm(q=-0.77, lower.tail= <span style=\"color: #008000;\">TRUE<\/span> )\n\n[1] 0.2206499\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: #008080;\">#find p-value<\/span>\npnorm(q=1.87, lower.tail= <span style=\"color: #008000;\">FALSE<\/span> )\n\n[1] 0.03074191\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 s\u0131f\u0131r hipotezini reddederiz.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>\u0130ki tarafl\u0131 test<\/strong><\/span><\/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: #008080;\">#find p-value for two-tailed test<\/span>\n2*pnorm(q=1.24, lower.tail= <span style=\"color: #008000;\">FALSE<\/span> )\n\n[1] 0.2149754\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. R&#8217;de z puan\u0131yla ili\u015fkili p de\u011ferini bulmak i\u00e7in a\u015fa\u011f\u0131daki s\u00f6zdizimini kullanan pnorm() i\u015flevini kullanabiliriz: pnorm(q, ortalama = 0, sd = 1, alt.kuyruk = DO\u011eRU) Alt\u0131n: q: [&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-921","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>R - Statorials&#039;ta Z puan\u0131n\u0131n P de\u011feri nas\u0131l hesaplan\u0131r?<\/title>\n<meta name=\"description\" content=\"R&#039;de bir z-puan\u0131n\u0131n p-de\u011ferinin nas\u0131l bulunaca\u011f\u0131na dair birka\u00e7 \u00f6rnek i\u00e7eren 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-puaninin-p-degeri-r\/\" \/>\n<meta property=\"og:locale\" content=\"tr_TR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"R - 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