A 3 year bond with semiannual coupons of 13% has a yield of 20.3%. You are to use Excels SumProduct function to compute the duration of this bond. Given two ranges of values, SumProduct computes their dot product. Create a table as shown, with entries appropriate to your bond, replacing the question marks with appropriate formulas.

In a single cell, use the functions SumProduct and Sum to compute the duration of this bond using only the cells shown above.

(a) What is the duration of this bond?

(b) What formula using the functions SumProduct and Sum (and using 37 characters or less) calculates this duration?

Answer correct to 4 decimals