Chapter 13, Problem 60H

Suppose a group is interested in determining whether teenagers obtain their drivers licenses at approximately the same

average age across the country. Suppose that the following data are randomly collected from five teenagers in each region

of the country. The numbers represent the age at which teenagers obtained their drivers licenses.

Northeast	South	West	Central	East
16.3	16.9	16.4	16.2	17.1
16.1	16.5	16.5	16.6	17.2
16.4	16.4	16.6	16.5	16.6
16.5	16.2	16.1	16.4	16.8
x ¯=	-----	-----	-----	-----
S2 =	-----	-----	-----	-----

Table 13.19

State the hypotheses.

H0: ____________

Ha: ____________