n this exercise involving paired differences, consider that it is reasonable to assume the populations being compared have approximately the same shape and that the distribution of paired differences...


n this exercise involving paired differences, consider that it is reasonable to assume the populations being compared have approximately the same shape and that the distribution of paired differences is approximately symmetric.

Percents of on-time arrivals for flights in 2006 and 2007 were collected for 11 randomly selected airports. Suppose data for these airports follow.



































































AirportPercent On-Time
20062007
172.7869.69
269.2364.88
376.9878.40
478.7175.78
578.5973.45
677.6779.68
775.6777.38
877.2969.98
969.3961.84
1080.9177.49
1174.5573.42

Use ? = 0.05 to test the hypothesis that there is no difference between the median percent of on-time arrivals for the two years



Find the value of the test statistic.


T + =


Find thep-value. (Round your answer to four decimal places.)


p-value =


Jun 10, 2022
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