An investigator wants to test if there is a difference in endotoxin levels in children who are exposed to endotoxin as a function of their proximity to operating farms. The following are endotoxin levels in units per milligram of dust sampled from children’s mattresses, organized by children’s proximity to farms. Within 5 Miles 54 62 78 90 70 5-24.9 Miles 28 42 39 81 65 25-49.9 Miles 37 29 30 50 53 50 Miles or More 36 19 22 28 27 Total Sample (Ordered Smallest to Largest) < 5 Miles 5-24.9 Miles 25-49.9 Miles 50+ Miles < 5 Miles 5-24.9 Miles 25-49.9 Miles 50+ Miles Apply the Kruskal Wallis test at a 5% level of significance. Alpha= ________ df= ________ Critical value= ________ H= ________ Based on comparing H to the critical value to the Critical value which of the following is (are) true? There is significant evidence at alpha=0.05 t o show that the populations of endotoxin levels in children living varying distances from operating farms are not equal. There is not significant evidence at alpha =0.05 to show that the populations of endotoxin levels in children living varying distances from operating farms are not equal. There are not enough data points to reach a conclusion. The tied value makes the analysis suspect.

An investigator wants to test if there is a difference in endotoxin levels in children who are exposed to endotoxin as a function of their proximity to operating farms. The following are endotoxin levels in units per milligram of dust sampled from children’s mattresses, organized by children’s proximity to farms. Within 5 Miles 54 62 78 90 70 5-24.9 Miles 28 42 39 81 65 25-49.9 Miles 37 29 30 50 53 50 Miles or More 36 19 22 28 27 Total Sample (Ordered Smallest to Largest) < 5 Miles 5-24.9 Miles 25-49.9 Miles 50+ Miles < 5 Miles 5-24.9 Miles 25-49.9 Miles 50+ Miles Apply the Kruskal Wallis test at a 5% level of significance. Alpha= df= Critical value= H= Based on comparing H to the critical value to the Critical value which of the following is (are) true? There is significant evidence at alpha=0.05 t o show that the populations of endotoxin levels in children living varying distances from operating farms are not equal. There is not significant evidence at alpha =0.05 to show that the populations of endotoxin levels in children living varying distances from operating farms are not equal. There are not enough data points to reach a conclusion. The tied value makes the analysis suspect.

Name: An investigator wants to test if there is a difference in endotoxin le
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Description: An investigator wants to test if there is a difference in endotoxin levels in children who are exposed to endotoxin as a function of their proximity to operating farms. The following are endotoxin levels in units per milligram of dust sampled from ch

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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An investigator wants to test if there is a difference in endotoxin levels in children who are exposed to endotoxin as a function of their proximity to operating farms. The following are endotoxin levels in units per milligram of dust sampled from children’s mattresses, organized by children’s proximity to farms.

Within 5 Miles 54 62 78 90 70

5-24.9 Miles 28 42 39 81 65

25-49.9 Miles 37 29 30 50 53

50 Miles or More 36 19 22 28 27

				Total Sample (Ordered Smallest to Largest)
< 5 Miles	5-24.9 Miles	25-49.9 Miles	50+ Miles	< 5 Miles	5-24.9 Miles	25-49.9 Miles	50+ Miles

Apply the Kruskal Wallis test at a 5% level of significance.

Alpha= ________

df= ________

Critical value= ________

H= ________

Based on comparing H to the critical value to the Critical value which of the following is (are) true?

There is significant evidence at alpha=0.05 t o show that the populations of endotoxin levels in children living varying distances from operating farms are not equal.
There is not significant evidence at alpha =0.05 to show that the populations of endotoxin levels in children living varying distances from operating farms are not equal.
There are not enough data points to reach a conclusion.
The tied value makes the analysis suspect.

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