A Statistical Analysis of Racial and Ethnic Inequality in U.S.A.Today.

我们试图对美国的种族和民族不平等进行统计分析。收入，职业和教育程度是我们用来衡量不平等的指标。我们使用1990年美国人口普查的公共使用微观数据样本进行研究。公共使用的微观数据样本是计算机可访问的文件，其中包含住房单元样本的记录，以及每个单元和其中人员的特征信息。公共使用的微观数据样本是从机密微观数据中提取的，以避免泄露可识别的家庭或个人的信息。我们的分析结论如下：1.收入和职业获得在种族和民族上存在显著差异; 2.收入和职业获得在教育程度上存在显著差异; 3.收入和职业获得在性别上存在显著差异。5.亚裔的平均收入高于白人; 6.西班牙裔受教育程度较低，而亚裔受教育程度较高; 7.在低教育程度群体中，白人的收入高于其他群体; 8.亚裔的平均收入高于白人。不同亚裔群体之间职业获得和教育获得的差异。9.亚裔群体教育获得的内部差异大于其他族裔群体。

We have attempted a statistical analysis of racial and ethnic inequality in United States.Income, occupation and educational attainment are indices that we have used to measure the inequality.We have used Public-use microdata samples of 1990 U.S.Census for our research. The Public-use microdata samples are computer accessible files which contain records for a sample of housing units, with information on the characteristics of each unit and the people in it.Public-use microdata samples are extracts from the confidential microdata taken in a manner that avoids disclosure of infomtion about identifiable households or individuals.The conclusion of our analysis is as follows :1 There exists a significant difference of income and occupational attainment by race and ethnicity.2 There exists a significant difference of income and occupational attainment by educational attainment.3 There exists a significant difference of income and occupational attainment by sex.4 There exists a significant difference of income by occupational attainment.5.the average income of Asians exceeds that of whites.6.More hispanics are less educated, while more asians have obtained higher education.7.The income of whites are higher than that of others among low education group.8 There exists a significant difference of income, occupational attainment and educational attainment among different asian ethnic groups.9.Internal difference of educational attainment is larger in Chinese than that in other groups.