4. The following table contains the Treasury Spot Rates. Treasury Spot Ra tes Mat Rate a) What is the Nominal Spread; b) What is the Z-Spread of a 7 % semiannual 2.5-Year corporate bond if it is selling for The Par= 1000. (Hint: Use Solver) 0.5 1.5 2 2.5 3 3.5 4 4.5 5 2.13% 2.47% 2.95% 3.21% 3.49% 3.93% 4.18% 4.55% 4.89% 5.12%