Problem 34.10| ln Problem 34.8, assmne that everything is 1mchanged except that an addi tional $5,000 is withdrawn on July 1. (a) Would the yield rate change when computed by the dollarweighted method? (b) Explain why the yield rate cannot be computed by the timeweighted method. Problem 34.11 A mutual fund acco1mt has the balance $100 on January 1. On July 1 (exactly in the middle of the year) the investor deposits $250 into the account. The balance of the mutual fund at the end of the year is $400. (a) Calculate the exact dollarweighted annual rate of interest for the year. (b) Suppose that the balance of the fund immediately before the deposit on July 1 is $121). Calculate the timeweighted annual rate of interest for the year