The following are the numbers of passengers carried on flights
The following are the numbers of passengers carried on flights 136 and 137 between Chicago and Phoenix on 12 days:
Use the sign test at the 0.01 level of significance to test the null hypothesis µ1 = µ2 (that on the average the two flights carry equally many passengers) against the alter-native hypothesis µ1 > µ2. Base the test on Table I.
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