A study of fox rabies in southern Germany gave the following information about different regions and the occurrence of rabies in each region (Reference: B. Sayers, et al., "A Pattern Analysis Study of a Wildlife Rabies Epizootic," Medical Informatics 2:11-34). Based on information from this article, a random sample of n1 16 locations in region I gave the following information about the number of cases of fox rabies near that location. x1: Region I data 1 8 8 8 7 8 8 1 3 4 A second random sample of n2 = 15 locations in region II gave the following information about the number of cases of fox rabies near that location.
X2.Region II data 1 1 3 4 8 5 4
Does this information indicate that there is a difference in the mean number of cases of fox rabies between the two regions? Use a 5% level of significance. Assume the distribution of rabies cases in both regions is mound-shaped and approximately normal.)