Problem 13-10 A university endowment fund has sought your advice on its fixed-income portfolio strategy. The characteristics of the portfolio's current holdings are listed below: Bond A Credit Rating U.S. Govt. Maturity (yrs.) 3 Coupon Modified Rate(%) Duration Convexity 2.724 9.8 6.004 56.2 3.504 18.6 Market Value of Position $34,000 34,000 34,000 34,000 34,000 $170,000 10.909 128.8 a. Calculate the modified duration for this portfolio (le, Mod Do). Do not round Intermediate calculations. Round your answer to three decimal places years 1. Suppose you learn that the implied sensitivity , modified duration of the endowment's abilities is about 6.30 years. Identify whether the bond portfolio is: (1) immunted against interest rate risk. (2) exposed to net price risk of (3) exposed to net reinvestment risk The portfolio's duration is the ability's duration, portfolio Set