Answer:
a. $950
yield to maturity = YTM = {40 + [(1,000 - 950)/40]} / [(1,000 + 950)/2] = 41.25 / 975 = 4.23% x 2 = 8.46%
effective yield = [1 + (r/n)]ⁿ - 1 = [1 + (0.08/2)]² - 1 = 8.16%, measures the coupon yield
since the effective yield is lower than the YTM, the bond is sold at a discount
b. $1,000
YTM = 8%, since the bond is sold at par
effective yield = [1 + (r/n)]ⁿ - 1 = [1 + (0.08/2)]² - 1 = 8.16%, measures the coupon yield
since the bond yield semiannual coupons, the effective yield is slightly higher than the YTM
c. $1,050
yield to maturity = YTM = {40 + [(1,000 - 1,050)/40]} / [(1,000 + 1,050)/2] = 38.75 / 1,025 = 3.78% x 2 = 7.56%
effective yield = [1 + (r/n)]ⁿ - 1 = [1 + (0.08/2)]² - 1 = 8.16%, measures the coupon yield
since the effective yield is higher than the YTM, the bond is sold at a premium