Question

For all Hypothesis test problems, please do the following; following the steps as discussed in class:

1.         Is the data discrete or continuous?

2.        List the assumptions

3.        State the null and alternate hypothesis.

4.        Write down the proper test statistic, Show all calculations, i.e. impute the numbers.  Set up Decision rules. Show the critical value.    Reject or Fail to reject.  

  5.        State your conclusions.

Problem 10-29

According to this table, 711 survived.

                                                            Class

                        First                 Second            Third              Crew       |           Total

Alive                203                   118                   178                   212       |          711

Dead                122                   167                   528                   673       |          1490

Test whether there was an association between Class and Survival on the Titanic In 1912, given the following information:

The chi-square observed value was computed to be 190.4 in SAS (Statistical Software).

Set up the appropriate null and alternate hypothesis.

Choose the right Chi-square critical value and formulate your decision.

You do not have to compute anything!

Answer 1