You have estimated spot rates as follows: ri = 5.00%, r2 = 5.40%, r3 = 5.70%, r4 = 5.90%, rs = 6.00%. a. What are the discount factors for each date (that is, the present value of $1 paid in year 6)? (Do not round intermediate calculations. Round your answers to 3 decimal places.) Year Discount Factors b. Calculate the PV of the following $1,000 bonds assuming an annual coupon and maturity of: (i) 5%, two-year bond; (ii) 5%, five-year bond; and (iii) 10%, five-year bond. (Do not round intermediate calculations. Round your answers to 2 decimal places.) Present Value b-i. 5%, two-year bond b-ii. 5%, five-year bond b-iii. 10%, five-year bond