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-Time20062007172.7869.69269.2364.88376.9878.40478.7175.78578.5973.45677.6779.68775.6777.38877.2969.98969.3961.841080.9177.491174.5573.42Use ? = 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 the p-value. (Round your answer to four decimal places.)p-value =

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Description: 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 arr

The Wilcoxon rank test is used to test the independent sample of size greater than or equal to 10.…

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MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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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.

Airport	Percent On-Time
2006	2007
1	72.78	69.69
2	69.23	64.88
3	76.98	78.40
4	78.71	75.78
5	78.59	73.45
6	77.67	79.68
7	75.67	77.38
8	77.29	69.98
9	69.39	61.84
10	80.91	77.49
11	74.55	73.42

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 the p-value. (Round your answer to four decimal places.)

p-value =

Definition Definition Middle value of a data set. The median divides a data set into two halves, and it also called the 50th percentile. The median is much less affected by outliers and skewed data than the mean. If the number of elements in a dataset is odd, then the middlemost element of the data arranged in ascending or descending order is the median. If the number of elements in the dataset is even, the average of the two central elements of the arranged data is the median of the set. For example, if a dataset has five items—12, 13, 21, 27, 31—the median is the third item in ascending order, or 21. If a dataset has six items—12, 13, 21, 27, 31, 33—the median is the average of the third (21) and fourth (27) items. It is calculated as follows: (21 + 27) / 2 = 24.

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