normalitas=read.csv("C:/Tugas Statistika/normalitas.csv", sep=";")
x=normalitas$Data

summary(x)
##    Min. 1st Qu.  Median    Mean 3rd Qu.    Max. 
##      40      60      70      70      80     100
library(nortest)
lillie.test(x)
## 
##  Lilliefors (Kolmogorov-Smirnov) normality test
## 
## data:  x
## D = 0.125, p-value = 0.7235