A Regression Was Performed on a Sample of 16 Observations $\beta$

Essay

A regression was performed on a sample of 16 observations. The estimated equation is . The standard errors for the coefficients are S_b1 = 4.2, S_b2 = 5.6, and S_b3 = 2.8. For this model, SST = 3809.6 and SSR = 3285.4.
a.Compute the appropriate t ratios.
b.Test for the significance of $\beta$ ₁, $\beta$ ₂ and $\beta$ ₃at the 5% level of significance.
c.Do you think that any of the variables should be dropped from the model? Explain.
d.Compute R² and R_a². Interpret R².
e.
Test the significance of the relationship among the variables at the 5% level of significance.