I created the below statistical test and analysis. Please identify the independent and dependent variables for 1-4 research questions. thank you.

1. Pearson r
2. Research Question: Is there a correlation between school attainment and reported income?
3. Null hypothesis: There is no correlation between years of education and income
4. Alternative hypothesis: There is a correlation between years of education and income.
5. Chi Square
6. Research Question: Is there a dependency between gender and school attainment?
7. Null hypothesis: School attainment and gender are independent.
8. Alternative hypothesis: School attainment and gender are not independent.

3.Analysis of Variance (you need ANOVA & T-test)

1. Is there a difference in school attainment and racial groups?
2. Null hypothesis: There is not a difference in school attainment between racial groups.
3. Alternative hypothesis: There is a difference in school attainment between racial groups.
4. t-test
5. Research question: Does the mean income vary by age.
6. Income mean differ significantly by age compared to the mean of the total population
7. Income mean does not differ significantly by age.