Discuss the below:
Q: 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
Apply the Kruskal Wallis test at a 5% level of significance.
Alpha= 0.05
df= ________
Critical value= ________
H= ________
Based on comparing H to the critical value to the Critical value which of the following is (are) true?
A. 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.
B. 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.
C. There are not enough data points to reach a conclusion.
D. The tied value makes the analysis suspect.