Answer:
YTM (Annual( = 10.13%
Effective Annual Yield =10.40%
Step-by-step explanation:
In order to calculate Yield to maturity, we need to use yield to maturity formula.
Formula: Yield to maturity = [C +(F – P)/n]/(F + P)/2
Where,
C = Coupon amount
F = Face value
n = number of periods
P = Current price
Data
C = 1000 x 8 % = 80
C (6months) = 80 x 6/12 = 40
F = $1000
n = 30 years
P = $800
Solution
YTM = 40 + (1000 – 800/30)/(1000 + 800)/2
YTM = 40 + (200/30)/(1800/2 )
YTM = 40 +( 200/30)/900
YTM = 5.068 semiannual
YTM (Annual( = 10.13%
Effective Annual Yield =

Effective Annual Yield =10.40%