The linear regression model for the birth rate and poverty rate data is described below:

Y = 4.267 + 1.373X

Where, the variable Y is the birth rate per 1000 females andthe variable X= poverty rate, which is the percentage of population living in households with incomes below the federally defined poverty level.

1. What is the predicted birth rate for poverty rate of 2%?
2. If the birth rate with 2% poverty rate turned out to be 8, what is the residual?
3. What is the predicted birth rate for poverty rate of 4%?
4. If the birth rate with 4% poverty rate turned out to be 9, what is the residual?