1. Deposits of $1000 are made at the beginning of each year for three years. The balance at the end of each year (before the deposit for the next year) was $1100, $2000, and $3400, respectively. Find the time-weighted yield rate.
2. A 10,000 par value 10-year bond with 8% annual coupons is bought at a premium to yield an annual effective rate of 6%. Calculate the interest portion of the 7th coupon.