A pension fund manager is considering three mutual funds. The first is a stock fund, the second is a long-term government and corporate bond fund, and the third is a T-bill money market fund that yields a sure rate of 4.3%. The probability distributions of the risky funds are:

Expected ReturnStandard DeviationStock fund (S)13%34%Bond fund (B)6%27%

The correlation between the fund returns is .0630.

Suppose now that your portfolio must yield an expected return of 11% and be efficient, that is, on the best feasible CAL.

a.What is the standard deviation of your portfolio?(Do not round intermediate calculations. Round your answer to 2 decimal places.)

b-1.What is the proportion invested in the T-bill fund?(Do not round intermediate calculations. Round your answer to 2 decimal places.)