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Q1) Test for survivability being independent upon ticket class or crew status for survivors of the sinking of HMS titanic. Use following contingency table and significance level of 5%.
1st Class
2nd Class
3rd Class
Crew
Total
Survived
203
118
178
212
711
Pershed
122
167
528
696
1513
325
285
706
908
224
a) Mention in English the null and alternate hypothesis
b) Compute the test statistic
c) Find out the critical value
d) Draw and label distribution used and position of values found in parts b) and c)
e) Based on these values what is result of test of independence described in English.
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