Multivariate Linear Regression

I have to choose an attitudinal variable such as income and what effect does ideology have on the attitudinal variable and I need to estimate a multivariate linear regression model using also some socio-demographic variables such as age and gender to predict scores on the attitudinal variable. I have to do this calculation in R. I have already done the multivariate linear regression estimate and I have the results, but I don't know how to interpret them. You need to write a mini-research paper about How ideology affects the attitudinal variable income and use the socio-demographic variables age and gender to predict scores on the attitudinal variable. I have already done the multivariate linear regression estimate for the variables mentioned above. You just need to write a mini-research paper based on the results that I will provide. I will upload the homework instructions, multivariate linear regression estimate, and a lecture on how to do a research paper as files. Please follow the instructions of the homework carefully.    

Sample Solution