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Dfranzani committed Sep 2, 2024
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33 changes: 33 additions & 0 deletions 01-unidad1.Rmd
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Expand Up @@ -155,6 +155,39 @@ El resultado indica que, la probabilidad de que el intervalo $(500.5, 506.9)$ (e
Obtener los intervalos con las confianzas al 90\% y 95\% asociados al ejemplo \@ref(exm:ejemplo1IC). Comente las diferencias e interprete.
:::


Dado lo expuesto en el ejercicio anterior, la figura \@ref(fig:simulacionIC) muestra la relación que existe entre la confianza y el rango del intervalo, en la cual, es posible observar que a mayor confianza es mayor el rango del intervalo.

```{r simulacionIC, echo=FALSE, fig.width=5, fig.height=4, fig.cap="Simulación de intervalos de confianza", fig.align='center', echo = F, warning=FALSE}
library(ggplot2)
set.seed(2024)
valores = round(runif(n = 200, min = 19, max = 29))
limites = function(confianza){
alfa = 1- confianza
li = mean(valores) - qnorm(1-alfa/2)*6/sqrt(length(valores))
ls = mean(valores) + qnorm(1-alfa/2)*6/sqrt(length(valores))
return(c(li,ls))
}
confianzas = 80:99/100
ICs = apply(as.matrix(confianzas), MARGIN = 1, FUN = function(x){
return(limites(x))
})
ICs = as.data.frame(t(ICs))
colnames(ICs) = c("Li","Ls")
ICs$N = 1:(dim(ICs)[1])
ICs$Confianza = confianzas
ggplot(data = ICs) +
geom_segment(aes(x = Li, y = N, xend = Ls, yend = N), color = "darkred", linetype = 1) +
geom_point(aes(x = Li, y = N)) +
geom_point(aes(x = Ls, y = N)) +
labs(y = "Confianza", x = "Intervalos",
title = "IC para la media y varianza conocida (36),\n proveniente de una distribución normal") +
scale_y_continuous(breaks = ICs$N, labels = ICs$Confianza)
```



### Intervalo de confianza para la media de una distribución normal y varianza poblacional desconocida

```{r echo=FALSE}
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\title{Estadística II \& Inferencia Estadística}
\author{\href{https://dfranzani.github.io/website/principal/home.html}{Daniel Franzani}}
\date{Actualizado al 07-08-2024}
\date{Actualizado al 01-09-2024}

\usepackage{amsthm}
\newtheorem{theorem}{Theorem}[chapter]
Expand Down Expand Up @@ -321,6 +321,17 @@ \subsection{Intervalo de confianza para la media de una distribución normal y v
Obtener los intervalos con las confianzas al 90\% y 95\% asociados al ejemplo \ref{exm:ejemplo1IC}. Comente las diferencias e interprete.
\end{exercise}

Dado lo expuesto en el ejercicio anterior, la figura \ref{fig:simulacionIC} muestra la relación que existe entre la confianza y el rango del intervalo, en la cual, es posible observar que a mayor confianza es mayor el rango del intervalo.

\begin{figure}

{\centering \includegraphics{est2+inferencia_files/figure-latex/simulacionIC-1}

}

\caption{Simulación de intervalos de confianza}\label{fig:simulacionIC}
\end{figure}

\subsection{Intervalo de confianza para la media de una distribución normal y varianza poblacional desconocida}\label{intervalo-de-confianza-para-la-media-de-una-distribuciuxf3n-normal-y-varianza-poblacional-desconocida}

\begin{table}[H]
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Expand Up @@ -278,7 +278,7 @@ <h1>
<div id="header">
<h1 class="title">Estadística II &amp; Inferencia Estadística</h1>
<p class="author"><em><a href="https://dfranzani.github.io/website/principal/home.html">Daniel Franzani</a></em></p>
<p class="date"><em>Actualizado al 07-08-2024</em></p>
<p class="date"><em>Actualizado al 01-09-2024</em></p>
</div>
<div id="presentación" class="section level1 unnumbered hasAnchor">
<h1>Presentación<a href="index.html#presentación" class="anchor-section" aria-label="Anchor link to header"></a></h1>
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Expand Up @@ -421,6 +421,13 @@ <h3><span class="header-section-number">1.2.1</span> Intervalo de confianza para
<div class="exercise">
<p><span id="exr:unlabeled-div-1" class="exercise"><strong>Ejercicio 1.1 </strong></span>Obtener los intervalos con las confianzas al 90% y 95% asociados al ejemplo <a href="intervalos-de-confianza.html#exm:ejemplo1IC">1.1</a>. Comente las diferencias e interprete.</p>
</div>
<p>Dado lo expuesto en el ejercicio anterior, la figura <a href="intervalos-de-confianza.html#fig:simulacionIC">1.2</a> muestra la relación que existe entre la confianza y el rango del intervalo, en la cual, es posible observar que a mayor confianza es mayor el rango del intervalo.</p>
<div class="figure" style="text-align: center"><span style="display:block;" id="fig:simulacionIC"></span>
<img src="est2+inferencia_files/figure-html/simulacionIC-1.png" alt="Simulación de intervalos de confianza" width="480" />
<p class="caption">
Figura 1.2: Simulación de intervalos de confianza
</p>
</div>
</div>
<div id="intervalo-de-confianza-para-la-media-de-una-distribución-normal-y-varianza-poblacional-desconocida" class="section level3 hasAnchor" number="1.2.2">
<h3><span class="header-section-number">1.2.2</span> Intervalo de confianza para la media de una distribución normal y varianza poblacional desconocida<a href="intervalos-de-confianza.html#intervalo-de-confianza-para-la-media-de-una-distribución-normal-y-varianza-poblacional-desconocida" class="anchor-section" aria-label="Anchor link to header"></a></h3>
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Expand Up @@ -279,7 +279,6 @@ <h1>
<h1>Talleres de práctica<a href="talleres-de-práctica.html#talleres-de-práctica" class="anchor-section" aria-label="Anchor link to header"></a></h1>
<p>A continuación, se muestra una lista de los talleres disponibles:</p>
<ul>
<li><a href="material/talleres/Taller%20introductorio/Taller_Introductorio_a_R.ipynb">Taller introductorio</a></li>
<li><a href="material/talleres/Talleres%20de%20practica/taller1.pdf">Taller de práctica 1</a></li>
<li><a href="material/talleres/Talleres%20de%20practica/taller2.pdf">Taller de práctica 2</a></li>
<li><a href="material/talleres/Talleres%20de%20practica/taller3.pdf">Taller de práctica 3</a></li>
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Expand Up @@ -58,8 +58,6 @@ if (knitr::is_html_output()){
link(talleres_pruebas, "Taller de práctica Evaluación "),
link(taller_examen, "Taller de práctica Examen "))
cat(" - [Taller introductorio](material/talleres/Taller introductorio/Taller_Introductorio_a_R.ipynb) \n")
if(length(talleres) != 0){
for (i in 1:length(talleres)) {
cat(paste(" -", talleres[i]), "\n")
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