XYZ stock price and dividend history are as follows: Beginning-of-Year Price $104 115 90 105 Year 2015 2016 2017 2018 Dividend Paid at Arithmetic mean Geometric mean Year-End $ 2 2 2 N An investor buys three shares of XYZ at the beginning of 2015, buys another one shares at the beginning of 2016, sells one share at the beginning of 2017, and sells all three remaining shares at the beginning of 2018. % % 2 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.) b-1. Prepare a chart of cash flows for the four dates corresponding to the turns of the year for January 1, 2015, to January 1, 2018. (Negative amounts should be indicated by a minus sign.) Date 01/01/2015 01/01/2016 01/01/2017 01/01/2018 Cash Flow b-2. What is the dollar-weighted rate of return? (Hint: If your calculator cannot calculate internal rate of return, you will have to use a spreadsheet or trial and error.) (Negative value should be indicated by a minus sign. Round your answer to 4 decimal places.) Rate of return %