R Markdown

This is an R Markdown document. Markdown is a simple formatting syntax for authoring HTML, PDF, and MS Word documents. For more details on using R Markdown see http://rmarkdown.rstudio.com.

When you click the Knit button a document will be generated that includes both content as well as the output of any embedded R code chunks within the document. You can embed an R code chunk like this:

summary(cars)
##      speed           dist       
##  Min.   : 4.0   Min.   :  2.00  
##  1st Qu.:12.0   1st Qu.: 26.00  
##  Median :15.0   Median : 36.00  
##  Mean   :15.4   Mean   : 42.98  
##  3rd Qu.:19.0   3rd Qu.: 56.00  
##  Max.   :25.0   Max.   :120.00

Including Plots

You can also embed plots, for example:

Note that the echo = FALSE parameter was added to the code chunk to prevent printing of the R code that generated the plot.

Problema 1

x=c(23.3, 22.5, 21.9, 21.5, 19.9, 21.3, 21.7, 23.8, 22.6, 24.7) media=mean(x) std=sd(x) n=length(x) cat(“media=”,media,“desv.est=”,std) alfa=0.01 EE=qt(1-alfa/2,n-1)*std/sqrt(n) cat(“EE=”,EE,“”) LO=media-EE LU=media+EE cat(“[”,LO,”,”,LU,”]”)

x=c(13.8, 14.0, 13.2, 11.9, 12.0, 12.1) media=mean(x) std=sd(x) n=length(x) cat(“media=”,media,“desv.est=”,std) alfa=0.01 EE=qt(1-alfa/2,n-1)*std/sqrt(n) cat(“EE=”,EE,“”) LO=media-EE LU=media+EE cat(“[”,LO,”,”,LU,”]”)

problema 2

x=c(5.12,5.20,5.15,5.17,5.16,5.19,5.15) n=length(x) media=mean(x) std=sd(x) alfa95=0.05 alfa99=0.01 t95=qt(1 - alfa95/2, df = n - 1) E95=t95 * std / sqrt(n) t99=qt(1 - alfa99/2, df = n - 1) E99=t99 * std / sqrt(n) cat(“Media del pH=”, media, “”) cat(“Desviacion estandar =”, std, “”) cat(“%”)

cat(“Limite inferior =”, media - E95, “”) cat(“Limite superior =”, media + E95, “”) cat(“%”)

cat(“Limite inferior =”, media - E99, “”) cat(“Limite superior =”, media + E99, “”)

##problema 3