Question 1. What is the probability that a randomly selected passenger survived?

Question 2. What is the probability that a passenger survived given that the passenger was in second class?

Question 3. What is the probability that a passenger survived and was in second class?

Question 4. Are the events "survived" and "third class passenger" independent?

Yes

No

Is there evidence to conclude that survival status is related to class of passenger? Answer the questions below about the appropriate hypothesis test.

Question 5. What is the null hypothesis?

Crew class and survival rate are not independent

The crew class had more survivors than the other classes

Third class passengers had a higher death rate

Survival status and class of passenger are independent

Survival status and class of passenger are not independent

First class passengers had a higher survival rate

Question 6. What is the expected number of observations in the cell in row 1,column 1?

Question 7. What is the value of the test statistic for this hypothesis test?

Question 8. What cell contributes the greatest amount to the value of the test statistic? Designate the cell by giving its rownumberand columnnumber.

The cell in row

and column

Question 9. What is the degrees of freedom associated with this hypothesis test?

Question 10. What is the conclusion of this hypothesis test? (one submission allowed)

Do not reject the null hypothesis and conclude that survival status and class of passenger are independent.

Reject the null hypothesis and conclude that survival status and class of passenger are not independent.

\f