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POSSIBLE AID FROM PREVIOUS STUDIEs
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Appendix arabic numeral arithmetic mean average incomes bad health blood brothers Bloomington BROTHERS REPORTING central tendency Class Least Schooling class of Group combined least schooling combined most schooling DATA WERE COLLECTED due to bad Education effect of schooling Eighth f Amount farm Farmer filled out questionnaires FREQUENCY DISTRIBUTION Freshman—high school Grade Case Grade GRADE OF SCHOOL Graduate Graduate—high school greater than zero H. L. SMITH high school imate Kewanna least schooling brother least schooling class Married mean grade attainment median income money losses due obtained means occupations pairs of brothers PAST FIVE probable error read as follows REPORTED GRADE REPORTED INCOME REPORTED NUMBER REPORTED OUTSTANDING INCIDENTs SCHOOL ATTAINED school grade attainment School marks Schooling Class Least Senior—high school Seventh significant ratio Sophomore—college Sophomore—high school standard error TABLE Teacher THREE tion true difference greater Union Township UNLUCKY BUSINESS DEALs WEALTH AND INCOMES zero exists