I'm wondering why the effective annual YTM are not correct.

Problem 14-12 A 10-year maturity bond with par value of $1,000 makes annual coupon payments at a coupon rate of 8%. Find the bond equivalent and effective annual yield to maturity of the bond for the following bond prices. (Round your answers to 2 decimal places.) & Answer is complete but not entirely correct. Bond Prices Bond Equivalent Annual Yield to Maturity 8.76 % Effective Annual Yield to Maturity a. 950 8.95 X % 8.16 X % b. $ 1,000 8.00 % C. $ 1,050 7.29 % 7.42 X %