4. The following table contains the Treasury Spot Rates. Treasury Spot a) What is the Nominal Spread: Rates b) What is the Z-Spread of a 7% semiannual 2.5-Year corporate bond if it is sell Mat Rate The Par = 1000. (Hint: Use Solver) 0.5 2.13% 1 2.47% 1.5 2.95% 2 3.21% 2.5 3.49% 3 3.93% 3.5 4.18% 4 4.55% 4.5 4.89% 5 5.12%