Problem #2: Excel's Solver utility can also find an optimum solution involving more than one variable. We will use Solver to find the best fit of a straight line yield curve for some bond prices (more information on Solver is available in the previous assignment, or in the online tutorial). You are to calibrate a straight line yield curve where y(t) = yo + mt by finding appropriate values for yo and m. The value y(t) is the semiannually compounding bond yield. or IRR for a bond of maturity t. The yield curve is to be the best straight-line fit for the following four bonds: Bond 1 has face value $100 and a term of 1 year with semiannual coupons of 9% and a price of $105.47. Bond 2 has face value $100 and a term of 1.5 year with semiannual coupons of 6% and a price of $101.99. Bond 3 has face value $100 and a term of 2 year with a semiannual coupon of 5% and a price of $99.94. Bond 4 has face value $100 and a term of 5 year with a semiannual coupon of 10% and a price of $113.60. Create a spreadsheet with headings similar to the following: D E F H Y_0 crate> m Term Coupon Face $100 $100 $100 $100 Frequency 2 2 2 1.5 Yield Model price Market price Difference squared y_0+m * B7 ccomputed> =(G7-H7)^2 ry_0+m*B8 ccomputed>