{"id":14238,"date":"2025-07-15T13:34:47","date_gmt":"2025-07-15T13:34:47","guid":{"rendered":"https:\/\/functiontranslator.com\/inv-t-2c\/"},"modified":"2021-02-26T09:00:13","modified_gmt":"2021-02-26T09:00:13","slug":"t-inv-2t","status":"publish","type":"post","link":"https:\/\/functiontranslator.com\/es\/t-inv-2t\/","title":{"rendered":"INV.T.2C"},"content":{"rendered":"<h2>Introducci\u00f3n a la Funcionalidad en Excel y Google Sheets<\/h2>\n<p> La funci\u00f3n <code>T.INV.2T<\/code> en Microsoft Excel y <code>INV.T.2C<\/code> en Google Sheets se utiliza para determinar el valor t correspondiente a una probabilidad bilateral espec\u00edfica en una distribuci\u00f3n t de Student. Esta funci\u00f3n es esencial en estad\u00edsticas, especialmente para realizar pruebas de hip\u00f3tesis y construir intervalos de confianza.<\/p>\n<h2>Sintaxis y Ejemplos<\/h2>\n<p> La sintaxis para esta funci\u00f3n en Microsoft Excel es <code>T.INV.2T(probabilidad, grados_de_libertad)<\/code>, donde: <\/p>\n<ul>\n<li><code>probabilidad<\/code> es la probabilidad acumulativa de las dos colas de la distribuci\u00f3n y debe estar entre 0 y 1.<\/li>\n<li><code>grados_de_libertad<\/code> se refiere al n\u00famero de grados de libertad en la distribuci\u00f3n t de Student.<\/li>\n<\/ul>\n<p> En Google Sheets, la funci\u00f3n corresponde a <code>INV.T.2C(probabilidad, grados_de_libertad)<\/code>.<\/p>\n<pre> Ejemplo en Excel: <code>=T.INV.2T(0.05, 10)<\/code> Ejemplo en Google Sheets: <code>=INV.T.2C(0.05, 10)<\/code> Ambos ejemplos calcular\u00e1n el valor t para el cual el \u00e1rea en las colas de la distribuci\u00f3n t de Student, con 10 grados de libertad, suman juntas una probabilidad de 0.05. <\/pre>\n<h2>Problemas Pr\u00e1cticos y Soluciones<\/h2>\n<p> A continuaci\u00f3n, se describen dos escenarios pr\u00e1cticos donde esta funci\u00f3n es indispensable.<\/p>\n<h2>1. Comparaci\u00f3n de Promedios para dos muestras peque\u00f1as<\/h2>\n<p> Imaginemos que queremos determinar si hay diferencias significativas entre los promedios de dos muestras peque\u00f1as e independientes. Para ello, utilizaremos la prueba t para muestras independientes, lo cual requiere calcular el valor cr\u00edtico t usando la probabilidad y grados de libertad.<\/p>\n<pre> <code>Problema: Dos grupos de estudiantes, uno de 6 y otro de 5 miembros, obtuvieron las siguientes calificaciones: Grupo A: 88, 92, 91, 87, 90 Grupo B: 85, 80, 83, 89, 81, 84 Soluci\u00f3n usando Excel: Grados de libertad = 5 + 6 - 2 = 9 Probabilidad = 0.05 (para un nivel de significancia del 5%) Utilizamos: <code>=T.INV.2T(0.05, 9)<\/code> Este c\u00e1lculo entrega el valor t cr\u00edtico que luego se comparar\u00e1 con el valor t calculado para decidir sobre la hip\u00f3tesis. <\/code> <\/pre>\n<h2>2. Evaluaci\u00f3n de la precisi\u00f3n de un instrumento de medici\u00f3n<\/h2>\n<p> Si un ingeniero necesita evaluar si la varianza en las mediciones de un instrumento es aceptable, puede usar esta funci\u00f3n para determinar los l\u00edmites cr\u00edticos t y compararlos con un valor t calculado a partir de muestras de mediciones.<\/p>\n<pre> <code>Problema: Se tomaron 15 mediciones de un sensor para evaluar su precisi\u00f3n. Soluci\u00f3n usando Google Sheets: Grados de libertad = 15 - 1 = 14 Probabilidad = 0.05 Calculamos el valor cr\u00edtico con: <code>=INV.T.2C(0.05, 14)<\/code> Este resultado nos ayudar\u00e1 a decidir si las variaciones en las mediciones est\u00e1n dentro de los rangos aceptables comparado con el valor t calculado. <\/code> <\/pre>\n","protected":false},"excerpt":{"rendered":"<p>Devuelve la funci\u00f3n inversa de la distribuci\u00f3n de t de Student<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[540],"tags":[],"class_list":["post-14238","post","type-post","status-publish","format-standard","hentry","category-estadistica"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.8 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Funci\u00f3n T.INV.2T (INV.T.2C) en Excel \u2013 c\u00f3mo funciona, ejemplos y sintaxis<\/title>\n<meta name=\"description\" content=\"Explicaci\u00f3n breve de la funci\u00f3n T.INV.2T (INV.T.2C) de Excel. 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