Variable selection
Our group started to think about the various factors that can be representative of the socio-economic elements considering the interrelationship with IQ scores. Finally, we selected 8 variables to explain the differences of IQ scores among the countries: GDP per capita, happiness index, duration of education, life expectancy, urbanization, corruption perception index, CO2 em
hundred students who are currently enrolled as Korea university undergraduate students were chosen for this research. After thoroughly validating standard assumptions of the regression model, we eventually chose stepwise method to finalize our model. Finally, we were able to statistically test our original conjecture of the relationship among variables and also verify our faulty expectations.
1. Statement of the Problem and Selection of Potentially Relevant Variables
1.1 Statement of the Problem
Regression Analysis of various factors on GPA (Grade Point Average)
1.2 Motives for the study of GPA
1. Statement of the Problem and Selection of Potentially Relevant Variables
1.3 Selection of Potentially Relevant Variables
1.4 Expectation of the relationshi
시장조사 업체인 GFK마케팅 서비스 코리아에 따르면 국내 디지털카메라 시장은 지난 2001년 보급대수 24만대에서 2002년에는 전년대비 87.5% 증가한 45만대, 2003년에는 93% 늘어난 87만대, 2004년에는 59% 증가한 140만대 규모로 매년 고속 성장세를 지속해오고 있다. GFK의 예상결과로만 보면, 2007년까지 국내 디지
variables, and while testing it by regression analysis, few variables had eliminated. Among the economic variables we added at the beginning, the labor participation is the only left one. The final model indicated that economic variables do not fully explain the high ration of suicide in Korea.
Therefore, the suicide rate in Korea has more association in aging society or divorce rate rather tha