Rstudio5

mean <- 335
sd<-5
t_value = qnorm(0.95)
result <- mean + t_value * 5/sqrt(10)

n <- 10
se <- sd/sqrt(10)
z_value <- (40-mean)/se
percentage <-1-pnorm(z_value)
result <- percentage*100

z<-(40-35)/(5/sqrt(10))
print(z)

## [1] 3.162278

result <- (1-pt(z,9))*100

# t(정규분포의 x값 )
#pt(공식 )
n=20 #(자유 n-1)
  #p value는 면적 
t = (11.5-10)/(3/sqrt(20))
result <- 1-pt(t,19)

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.