{"id":13860,"date":"2025-07-15T13:34:47","date_gmt":"2025-07-15T13:34:47","guid":{"rendered":"https:\/\/functiontranslator.com\/distr-chicuad-cd\/"},"modified":"2021-02-26T08:43:25","modified_gmt":"2021-02-26T08:43:25","slug":"chisq-dist-rt","status":"publish","type":"post","link":"https:\/\/functiontranslator.com\/es\/chisq-dist-rt\/","title":{"rendered":"DISTR.CHICUAD.CD"},"content":{"rendered":"<h2>Descripci\u00f3n y Sintaxis de la Funci\u00f3n DISTR.CHICUAD.CD en Excel y Google Tablas<\/h2>\n<p> La funci\u00f3n DISTR.CHICUAD.CD en Microsoft Excel y su equivalente en Google Tablas se utiliza para calcular la distribuci\u00f3n Chi-cuadrado de una variable aleatoria. Esta funci\u00f3n es particularmente \u00fatil en el \u00e1mbito de la estad\u00edstica para evaluar hip\u00f3tesis que involucran la variabilidad o dispersi\u00f3n en un conjunto de datos. La distribuci\u00f3n Chi-cuadrado es ampliamente empleada en pruebas de bondad de ajuste, an\u00e1lisis de tablas de contingencia y otros aspectos del an\u00e1lisis inferencial. <\/p>\n<p> La sintaxis de la funci\u00f3n es la siguiente: <\/p>\n<pre><code>DISTR.CHICUAD.CD(x, grados_de_libertad)<\/code><\/pre>\n<p> donde: <\/p>\n<ul>\n<li><strong>x<\/strong> es el valor al que deseamos calcular la probabilidad.<\/li>\n<li><strong>grados_de_libertad<\/strong> son los grados de libertad de la distribuci\u00f3n Chi-cuadrado.<\/li>\n<\/ul>\n<p> Por ejemplo: <\/p>\n<pre><code>=DISTR.CHICUAD.CD(10, 3)<\/code><\/pre>\n<p> Este ejemplo muestra la probabilidad de que una distribuci\u00f3n Chi-cuadrado con tres grados de libertad tenga un valor de 10 o m\u00e1s. <\/p>\n<h2>Aplicaciones Pr\u00e1cticas de la Funci\u00f3n<\/h2>\n<p> La funci\u00f3n DISTR.CHICUAD.CD se puede utilizar en diversos contextos, como se muestra en los siguientes ejemplos:<\/p>\n<h2>Ejemplo 1: Prueba de Bondad de Ajuste<\/h2>\n<p> Imagine un investigador que quiera comprobar si un dado es justo. Este lanza el dado 60 veces y anota la frecuencia de cada resultado. Si el dado fuera justo, cada cara deber\u00eda aparecer, en promedio, 10 veces. La frecuencia observada se organiza como sigue:<\/p>\n<table>\n<tr>\n<th>Cara<\/th>\n<th>Frecuencia Observada<\/th>\n<th>Frecuencia Esperada<\/th>\n<\/tr>\n<tr>\n<td>1<\/td>\n<td>5<\/td>\n<td>10<\/td>\n<\/tr>\n<tr>\n<td>2<\/td>\n<td>15<\/td>\n<td>10<\/td>\n<\/tr>\n<tr>\n<td>3<\/td>\n<td>10<\/td>\n<td>10<\/td>\n<\/tr>\n<tr>\n<td>4<\/td>\n<td>8<\/td>\n<td>10<\/td>\n<\/tr>\n<tr>\n<td>5<\/td>\n<td>12<\/td>\n<td>10<\/td>\n<\/tr>\n<tr>\n<td>6<\/td>\n<td>10<\/td>\n<td>10<\/td>\n<\/tr>\n<\/table>\n<p> El estad\u00edstico Chi-cuadrado se calcula con la f\u00f3rmula: <\/p>\n<pre><code>=SUMXMY2([Frecuencia Observada], [Frecuencia Esperada]) \/ [Frecuencia Esperada]<\/code><\/pre>\n<p> Resultando en un valor de Chi-cuadrado de 7.8. Utilizando cinco grados de libertad (6-1, por las seis caras del dado), se obtiene el valor P mediante: <\/p>\n<pre><code>=DISTR.CHICUAD.CD(7.8, 5)<\/code><\/pre>\n<p> Si este valor es menor a 0.05, se rechaza la hip\u00f3tesis de que el dado es justo. <\/p>\n<h2>Ejemplo 2: An\u00e1lisis de Tablas de Contingencia<\/h2>\n<p> En estudios m\u00e9dicos, es com\u00fan evaluar la efectividad de un tratamiento mediante tablas de contingencia. Consideremos un estudio para determinar la efectividad de un medicamento con los siguientes resultados:<\/p>\n<table>\n<tr>\n<th><\/th>\n<th>Mejor\u00f3<\/th>\n<th>No Mejor\u00f3<\/th>\n<\/tr>\n<tr>\n<td>Con Medicamento<\/td>\n<td>35<\/td>\n<td>65<\/td>\n<\/tr>\n<tr>\n<td>Sin Medicamento<\/td>\n<td>20<\/td>\n<td>80<\/td>\n<\/tr>\n<\/table>\n<p> El Chi-cuadrado se calcula y con un grado de libertad (producto de (filas &#8211; 1) * (columnas &#8211; 1)), se busca el valor P usando la funci\u00f3n DISTR.CHICUAD.CD. Si este valor es bajo (por ejemplo, menor a 0.05), podemos concluir estad\u00edsticamente que hay una diferencia significativa causada por el tratamiento. <\/p>\n","protected":false},"excerpt":{"rendered":"<p>Devuelve la probabilidad de una cola de distribuci\u00f3n chi cuadrado<\/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-13860","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 CHISQ.DIST.RT (DISTR.CHICUAD.CD) en Excel \u2013 c\u00f3mo funciona, ejemplos y sintaxis<\/title>\n<meta name=\"description\" content=\"Explicaci\u00f3n breve de la funci\u00f3n CHISQ.DIST.RT (DISTR.CHICUAD.CD) de Excel. 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