Problem 5-7 XYZ stock price and dividend history are as follows: Dividend Paid at Year- Year 2015 2016 2017 2018 Beginning of - Year Price $132 147 12e 125 An investor buys five shares of XYZ at the beginning of 2015, buys another three shares at the beginning of 2016, sells one share at the beginning of 2017, and sells all seven remaining shares at the beginning of 2018 a. What are the arithmetic and geometric average time-weighted rates of return for the investor? (Do not round intermediate calculations. Round your answers to 2 decimal places.) Anthetic mean Geometric mean here to search