setwd("C:/Users/Dell/Downloads/Sameer Mathur")
titanic.df<-read.csv("Titanic Data.csv")
View(titanic.df)
Creating a table showing the average age of the survivors and the average age of the people who died.
aggregate(titanic.df$Age,list(Survivors=titanic.df$Survived),mean)
## Survivors x
## 1 0 30.41530
## 2 1 28.42382
Running a t-test to test the following hypothesis:“The Titanic survivors were younger than the passengers who died.”
t.test(Age~Survived,titanic.df)
##
## Welch Two Sample t-test
##
## data: Age by Survived
## t = 2.1816, df = 667.56, p-value = 0.02949
## alternative hypothesis: true difference in means is not equal to 0
## 95 percent confidence interval:
## 0.1990628 3.7838912
## sample estimates:
## mean in group 0 mean in group 1
## 30.41530 28.42382
Thus from the result of this test we can conclude that the titanic survivors were younger than the passengers who died.