Construct potential hypotheses or research questions to relate the variables in each of the following examples. Also, write a brief statement explaining why you believe there is a relationship between the variables as specified in your hypotheses.

1. Political party and support of a U.S.-Mexico border wall

2. Income and race/ethnicity

3. The crime rate and the number of police in a city

4. Life satisfaction and marital status

5. Age and support for marijuana legalization

6. Care of elderly parents and ethnicity