{"id":14232,"date":"2025-07-15T13:34:47","date_gmt":"2025-07-15T13:34:47","guid":{"rendered":"https:\/\/functiontranslator.com\/distr-t\/"},"modified":"2021-02-26T08:59:38","modified_gmt":"2021-02-26T08:59:38","slug":"tdist","status":"publish","type":"post","link":"https:\/\/functiontranslator.com\/es\/tdist\/","title":{"rendered":"DISTR.T"},"content":{"rendered":"

Introducci\u00f3n a la Funci\u00f3n DISTR.T en Excel<\/h2>\n

La funci\u00f3n DISTR.T en Microsoft Excel es utilizada para calcular la probabilidad de dos colas de la distribuci\u00f3n t de Student a partir de un valor t dado y los grados de libertad. Es una herramienta fundamental en an\u00e1lisis estad\u00edstico, especialmente \u00fatil para pruebas que involucran muestras peque\u00f1as.<\/p>\n

Sintaxis y Ejemplos de Uso<\/h2>\n

La sintaxis para la funci\u00f3n DISTR.T es:<\/p>\n

=DISTR.T(x, grados_libertad, colas)<\/code><\/pre>\n
    \n
  • x:<\/strong> El valor t que se eval\u00faa en la funci\u00f3n.<\/li>\n
  • grados_libertad:<\/strong> El n\u00famero de grados de libertad de la muestra.<\/li>\n
  • colas:<\/strong> Indica el tipo de distribuci\u00f3n, siendo 1 para una cola y 2 para dos colas.<\/li>\n<\/ul>\n
    Ejemplo 1:<\/strong> Para calcular la probabilidad a dos colas de una t-distribuci\u00f3n donde el valor t es 2.3 y hay 10 grados de libertad, usaremos:<\/p>\n
    =DISTR.T(2.3, 10, 2)<\/code><\/pre>\n
    Esto devuelve la probabilidad de obtener un valor t mayor o igual a 2.3 o menor o igual a -2.3, dada una distribuci\u00f3n de dos colas y 10 grados de libertad.<\/p>\n
    Aplicaciones Pr\u00e1cticas de DISTR.T<\/h2>\n
    La funci\u00f3n DISTR.T es crucial para el an\u00e1lisis estad\u00edstico en contextos donde el tama\u00f1o de la muestra es reducido y se emplea la distribuci\u00f3n t de Student para inferencias estad\u00edsticas.<\/p>\n
    Ejemplo de Comparaci\u00f3n de Medias<\/h2>\n
    Considere a un investigador que desea examinar si hay diferencias significativas entre las medias de dos grupos peque\u00f1os. Estos grupos tienen 8 y 10 observaciones, y el investigador usa un valor t de 1.85 para comparar las medias.<\/p>\n
    =DISTR.T(1.85, 16, 2)<\/code><\/pre>\n
    Aqu\u00ed, se utilizan 16 grados de libertad (8 + 10 – 2) y se consulta una distribuci\u00f3n de dos colas. El resultado indica la probabilidad de observar una diferencia en las medias tan grande o mayor, bajo la suposici\u00f3n de que no existen diferencias reales.<\/p>\n
    An\u00e1lisis de Regresi\u00f3n<\/h2>\n
    La funci\u00f3n DISTR.T tambi\u00e9n se emplea frecuentemente en an\u00e1lisis de regresi\u00f3n para evaluar la significancia de coeficientes estimados. Por ejemplo, si un coeficiente de regresi\u00f3n es -2.47 y la regresi\u00f3n usa 25 grados de libertad:<\/p>\n
    =DISTR.T(-2.47, 25, 2)<\/code><\/pre>\n
    Un valor peque\u00f1o en este contexto sugiere que es poco probable obtener tal coeficiente por azar, lo que se\u00f1ala que este es estad\u00edsticamente significativo.<\/p>\n
    Conclusi\u00f3n<\/h2>\n
    La funci\u00f3n DISTR.T de Excel provee un medio esencial para realizar pruebas de hip\u00f3tesis en situaciones con muestras peque\u00f1as, facilitando a los usuarios evaluar la significancia estad\u00edstica de forma sencilla y fiable.<\/p>\n","protected":false},"excerpt":{"rendered":"
    Devuelve 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":[542],"tags":[],"class_list":["post-14232","post","type-post","status-publish","format-standard","hentry","category-compatibilidad"],"acf":[],"yoast_head":"\nFunci\u00f3n TDIST (DISTR.T) en Excel \u2013 c\u00f3mo funciona, ejemplos y sintaxis<\/title>\n<meta name=\"description\" content=\"Explicaci\u00f3n breve de la funci\u00f3n TDIST (DISTR.T) de Excel. 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