Using the Wilcoxon Signed-Ranks Test.?Refer to the sample data for the given exercises .Use the Wilcoxon signed-ranks test to test the claim that the matched pairs have differences that come from a population with a median equal to zero. Use a 0.05 significance level. Exercise Use the sign test for the data consisting of matched pairs. Flight Data Repeat Example 2 using the following times for American Airlines Flight 19.

Solution 6BSC Step 1 The given problem explain about Flight Data. From the given problem we use the Wilcoxon signed-ranks test to test the claim that the matched pairs have differences that come from a population with a median equal to zero. We know that the given data are a simple random sample. Here we have to check the symmetry. Then we have to find the differences. Now,we are subtracting taxi-out time (min) and taxi-in times(min).