What Are We Testing? ?Refer to the sample data in Exercise. Assuming that we use the Wilcoxon rank-sum test with those data, identify the null hypothesis and all possible alternative hypotheses. Exercise Flight 19 -5 -32 -13 -9 -19 49 -30 -23 14 -21 -32 11 Flight 21 -23 28 103 -19 -5 -46 13 -3 13 106 -34 -24

Solution 3BSC Step 1 : In the above example the data consists of the arrival delay times of American Airlines Flights 19 and 21 taken randomly The null hypothesis be H :0The median of the delay in arrival time of flight 19 is equal to the median of the delay in arrival time of flight 21. Possible alternative hypothesis be i) H : The median of...