Hypothesis test of proportions On April 15th 1912, the R.M.S. Titanic sank into the north atlantic ocean resulting in th loss of more than 1500 passengers and crew. Below is a number of passengers and crew of survivors for the crew, first, second, and third class. Find the proportion of survivors by type of service crew, first, second and third. Test the hypothesis at the 99% confidence level that the proportion of first class survivors is the same as third class (25)
Hypothesis test of proportions
On April 15th 1912, the R.M.S. Titanic sank into the north atlantic ocean resulting in th loss of more than 1500 passengers and crew. Below is a number of passengers and crew of survivors for the crew, first, second, and third class.
Find the proportion of survivors by type of service crew, first, second and third.
Test the hypothesis at the 99% confidence level that the proportion of first class survivors is the same as third class (25)
What do you calculate for the test statistic: c? what is the critical sttistic?
What is the conclusion of your hypothesis test?
class passengers survived
crew 885 212
first 325 202
second 285 118
third 706 178
totals 2201 710
total
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