W(bills) 0.0 0.2 0.4 0.6 0.8 12. E(r) on T-bills is 5% and the same on the composite index is 9.24% and the standard deviation of the composite index is 17.42%. Calculate the expected return and standard deviation of portfolios invested in T-bills and the composite index with weights as follows: 1.0 W(market) 1.0 0.8 0.6 0.4 0.2 0.0 13. Calculate the utility levels of each portfolio of the preceding problem for an investor with A= 3.