Did survival rate for passengers on the Titanic really depend on the type of ticket they had? Following are the data for the 2201 people on board listed by whether they survived and what type of ticket they had. Does survival appear to be independent of ticket class? (Test the hypothesis at a = 0.05.) What is the P-value of the test statistic? Crew First Second Third Total Alive 212 202 118 178 710 Dead 673 123 167 528 1491 Total 885 325 285 706 2201

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2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.