The number of people who survived the Titanic based on class and sex is in table

#11.1.5 ("Encyclopedia Titanica," 2013). Is there enough evidence to show that

the class and the sex of a person who survived the Titanic are independent? Test

at the 5% level.

Table #11.1.5: Surviving the Titanic

Sex

Class

Female Male Total

1st 134 59 193

2nd 94 25 119

3rd 80 58 138

Total 308 142 450