4. An investor buys a 12 -year, $1000 par value callable bond with annual coupons of 6%. The bond is callable after 6 years with redemption value of $1030 at the end of years 6 through 9 on the coupon dates and 1010 at the end of years 10 and 11 on the coupon dates, and redemption value 1000 at maturity. i. Determine the maximum price that guarantees an annual yield rate of at least 7% ii. Determine the maximum price that guarantees an annual yield rate of at least 5%