The following output is associated with a multiple regression model with three independent variables:

a. What is the regression model associated with these data?
b. Is the model statistically significant?
c. How much of the variation in the dependent variable can be explained by the model?
d. Are all of the independent variables in the model significant? If not, which are not and how can you tell?
e. How much of a change in the dependent variable will be associated with a one-unit change in x2? In x3?
f. Do any of the 95% confidence interval estimates of the slope coefficients contain zero? If so, what does this indicate?