5. A social worker conducted an experiment to study if the level of education among immigrants to the United States is dependent on the region of migration. The following data give the level of education of 815 immigrants. Test the hypothesis at the 1% level of significance that the level of education among immigrants is independent of their region of migration.

Level of Asian European Middle Eastern African education countries countries ountries countries Highly educated 90 80 40 30 Well educated 120 120 50 35 Not well educated 70 50 60 70