Martin Good purchased some corporate stock 7 years ago for $6,000. He received quarterly dividends of $60 at the end of each quarter for the first 4 years, nothing for the fifth year, and $65 at the end of each quarter for the last 2 years. Immediately after receiving the last quarterly dividend, Martin sold the stock for $14,500. What interest rate, compounded quarterly, did he earn? 15.26% compounded quarterly 3.18% compounded quarterly 14.76% compounded quarterly 3.69% compounded quarterly.