Sociology: Ethnic Groups A sociologist studying New York City ethnic groups wants to determine if there is a difference in income for immigrants from four different countries during their first year in the city. She obtained the data in the following table from a random sample of immigrants from these countries (incomes in thousands of dollars). Use a 0.05 level of significance to test the claim that there is no difference in the earnings of immigrants from the four different countries.

Country I Country II Country III Country IV 12.7 8.3 20.3 17.2 9.2 17.2 16.6 8.8 10.9 19.1 22.7 14.7 8.9 10.3 25.2 21.3 16.4 19.9 19.8 AppendixLO1