Answer:
(a) The effective annual interest rate for a 3-month T-bill selling at $97,270 with par value $100,000 is 11.71%
(b) The effective annual interest rate for a 13% coupon bond selling at par and paying coupons semiannually is 13.42%
Step-by-step explanation:
(a) A 3-month T-bill selling at $97,270 with par value $100,000
EAR =
![[par value /price]^n-1}](https://img.qammunity.org/2021/formulas/business/college/l9f9nu6d9mtuf8vjq7oumbl68b7xc99mjd.png)
n = 3 months or 12/3 = 4 times in a year
=
![[100,000/97,270]^4 - 1](https://img.qammunity.org/2021/formulas/business/college/64olsw8fcxq7oexawwu5kwucdj1mav2t1z.png)
=
![[1.028066]^4 -1](https://img.qammunity.org/2021/formulas/business/college/zehhbm309h1r5rytjm816c57sgx6y7rg3y.png)
= 1.1171 - 1
= .1171 or 11.71%
b) EAR(coupon bond) =
![[1+.13/2]^2 -1](https://img.qammunity.org/2021/formulas/business/college/izxpd36lfqqv5j44oovaz8ilbjpwo9plfc.png)
=
![[1+.065]^2 -1](https://img.qammunity.org/2021/formulas/business/college/llkej06yqu689ec1sgiux1an0ejf10wiwi.png)
=
![[1.065]^2 -1](https://img.qammunity.org/2021/formulas/business/college/z4096jopa0z4r0sl0zltdo8wibgkwfg8un.png)
= 1.1342 - 1
= .1342 or 13.42%