{"id":15321,"date":"2025-07-15T13:34:52","date_gmt":"2025-07-15T13:34:52","guid":{"rendered":"https:\/\/functiontranslator.com\/guvenilirlik-t\/"},"modified":"2021-02-25T16:23:55","modified_gmt":"2021-02-25T16:23:55","slug":"confidence-t","status":"publish","type":"post","link":"https:\/\/functiontranslator.com\/tr\/confidence-t\/","title":{"rendered":"G\u00dcVEN\u0130L\u0130RL\u0130K.T"},"content":{"rendered":"

G\u00fcven aral\u0131klar\u0131, istatistiksel olarak anlaml\u0131 sonu\u00e7lar \u00e7\u0131karmak i\u00e7in kullan\u0131lan \u00f6nemli bir y\u00f6ntemdir. Hem Microsoft Excel hem de Google E-Tablolar bu konuda kullan\u0131c\u0131lar\u0131na yard\u0131mc\u0131 olmak i\u00e7in CONFIDENCE.T<\/code> (T\u00fcrk\u00e7e: G\u00dcVEN\u0130L\u0130RL\u0130K.T) fonksiyonunu sunar. Bu fonksiyon, belirli bir g\u00fcven seviyesinde, ortalamas\u0131n\u0131n etraf\u0131nda bir pop\u00fclasyon aral\u0131\u011f\u0131 tahmin etmek i\u00e7in kullan\u0131l\u0131r.<\/p>\n

Fonksiyonun S\u00f6zdizimi ve A\u00e7\u0131klamas\u0131<\/h2>\n

CONFIDENCE.T<\/code> fonksiyonunun genel s\u00f6z dizimi a\u015fa\u011f\u0131daki gibidir:<\/p>\n

CONFIDENCE.T(alpha, standart_sapma, \u00f6rnek_boyutu)<\/code><\/pre>\n
    \n
  • alpha:<\/strong> 1 eksi g\u00fcven seviyesinin y\u00fczdesi. \u00d6rne\u011fin, %95 g\u00fcven seviyesi i\u00e7in alpha de\u011feri 0.05 olmal\u0131d\u0131r.<\/li>\n
  • standart_sapma:<\/strong> Veri k\u00fcmesinin standart sapmas\u0131.<\/li>\n
  • \u00f6rnek_boyutu:<\/strong> Veri k\u00fcmesindeki g\u00f6zlem say\u0131s\u0131. Bu say\u0131 30’dan b\u00fcy\u00fck olmal\u0131d\u0131r, b\u00f6ylece T da\u011f\u0131l\u0131m\u0131 normal da\u011f\u0131l\u0131ma yak\u0131nsam\u0131\u015f olur.<\/li>\n<\/ul>\n
    Pratik Uygulamalar<\/h2>\n
    1. \u00dcr\u00fcn Kalitesinin De\u011ferlendirilmesi<\/h3>\n
    Bir \u00fcretim \u015firketi, \u00fcretti\u011fi par\u00e7alar\u0131n uzunluklar\u0131n\u0131n istenilen \u00f6l\u00e7\u00fctlere uyup uymad\u0131\u011f\u0131n\u0131 de\u011ferlendirmek istiyor. 100 par\u00e7an\u0131n \u00f6l\u00e7\u00fclmesi sonucu, ortalama uzunluk 200 mm ve standart sapma 15 mm olarak hesaplanm\u0131\u015ft\u0131r. %95 g\u00fcven seviyesi i\u00e7in g\u00fcven aral\u0131\u011f\u0131 hesaplamak istersek:<\/p>\n
    CONFIDENCE.T(0.05, 15, 100)<\/code><\/pre>\n
    Bu fonksiyon sonucu elde edilen de\u011fer, ortalama de\u011ferin her iki yan\u0131nda eklenip \u00e7\u0131kar\u0131larak, %95 g\u00fcvenilirlikle par\u00e7alar\u0131n uzunlu\u011funun bu aral\u0131kta olaca\u011f\u0131 tahmin edilir.<\/p>\n
    2. M\u00fc\u015fteri Memnuniyeti Anketi De\u011ferlendirmesi<\/h3>\n
    Bir \u015firket, m\u00fc\u015fteri memnuniyetini \u00f6l\u00e7mek i\u00e7in bir anket d\u00fczenler. Ankete 250 ki\u015fi kat\u0131l\u0131r ve standart sapma 1.2 olarak bulunur. %90 g\u00fcven seviyesi i\u00e7in g\u00fcven aral\u0131\u011f\u0131n\u0131 hesaplamak gerekirse:CONFIDENCE.T(0.1, 1.2, 250)<\/code> yazarak sonucu bulunur. Bu sonu\u00e7, ankete kat\u0131lan m\u00fc\u015fterilerin memnuniyet puanlar\u0131n\u0131n g\u00fcvenilir bir \u015fekilde tahmin edilen aral\u0131\u011f\u0131n\u0131 verir.<\/p>\n<\/p>\n
    Yorumlar<\/h2>\n
    G\u00fcven aral\u0131\u011f\u0131 hesaplarken kullan\u0131lan CONFIDENCE.T<\/code> fonksiyonu, belirsizlikleri anlamam\u0131za ve karar verme s\u00fcre\u00e7lerinde daha bilin\u00e7li olmam\u0131za yard\u0131mc\u0131 olur. \u00d6zellikle i\u015f d\u00fcnyas\u0131nda, m\u00fc\u015fteri tepkilerini veya \u00fcr\u00fcn kalitesini de\u011ferlendirirken objektif veriler sunar.<\/p>\n","protected":false},"excerpt":{"rendered":"
    T-da\u011f\u0131l\u0131m\u0131n\u0131 kullanarak n\u00fcfus ortalamas\u0131n\u0131n g\u00fcven aral\u0131\u011f\u0131n\u0131 verir<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[582],"tags":[],"class_list":["post-15321","post","type-post","status-publish","format-standard","hentry","category-istatistik"],"acf":[],"yoast_head":"\nExcel'de CONFIDENCE.T (G\u00dcVEN\u0130L\u0130RL\u0130K.T) Fonksiyonu: Nas\u0131l \u00c7al\u0131\u015f\u0131r, Kullan\u0131m \u00d6rnekleri<\/title>\n<meta name=\"description\" content=\"Excel ve Google E-Tablolar'da CONFIDENCE.T (G\u00dcVEN\u0130L\u0130RL\u0130K.T) fonksiyonunun detayl\u0131 incelemesi. 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