XYZ stock price and dividend history are as follows: 2017 110 4 2018 120 4 2019 100 4 2020 110

XYZ's stock price and dividend history are as follows: Beginning-of-Year Price $ 119 120 100 110 Dividend Paid at Year-End $ 4 Year 2012 2018 2019 2020 4 4 An investor buys three shares of XYZ at the beginning of 2017, buys another two shares at the beginning of 2018, sells one share at the beginning of 2019, and sells all four remaining shares at the beginning of 2020. a. What are the arithmetic and geometric average time weighted rates of return for the investor? (Round your year-by-year rates of return and final answer to 2 decimal places. Do not round other calculations.) % Arithmetic average rate of return Geometric average rate of return 1187 % b. What is the dollar-weighted rate of return? (Hint. Carefully prepare a chart of cash flows for the four dates corresponding to the turns of the year for January 1, 2017 to January 1, 2020. If your calculator cannot calculate IRR, you will have to use trial and error or a spreadsheet program.) (Round your answers to 4 decimal places. Negative amount should be indicated by a minus sign.) Dollar-weighted rate of return