XYZ stock price and dividend history are as follows: Dividend Paid at Year Beginning-of- Year Price 2010 2011 2012 2013 $ 2 $ 2 S 125 S 141 S 120 S 125 S 2 An investor buys six shares of XYZ at the beginning of 2010, buys another three shares at the beginnng of 2011, sells one share at the beginning of 2012, and sells all eight remaining shares at the beginning of 2013 a. What are the arithmetic and geometric average time-weighted rates of retum for the investor? (Do not round intermediate calculations. Round your answers to 2 decimal places.) Arithmetic mean Geometric mean b-1. Prepare a chart of cash flows for the four dates corresponding to the turns of the year for January 1, 2010, to January 1, 2013. (Negative amounts should be indicated by a minus sign.) /1/2010 /1/2011 1/1/2012 11/2013 b-2. What is the dollar-weighted rate of returm? (Hint:If your caloulator cannot calculate internal rate of returm, you il 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 esc k