A study of fox rabies in a country gave the following information about different regions and the occurrence of rabies in each region. 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

2	9	9	9	7	8	8	1
3	3	3	2	5	1	4	6

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:

2	2	3	2	4	8	5	4
4	4	2	2	5	6	9

A.Use a calculator with sample mean and sample standard deviation keys to calculate x₁ and s₁ in region I, and x₂ and s₂ in region II. (Round your answers to four decimal places.)

x₁=s₁=x₂=s₂=

Does this information indicate that there is a difference (either way) 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.)

B.What is the level of significance?

C.What is the value of the sample test statistic? (Test the difference _{1 2}. Do not use rounded values. Round your final answer to three decimal places.)