4. (9 points) In a particular year, a mutual fund earned its return by making the following investments: Weight Return Bonds 20% Stocks 80% 0% 5% A bogey portfolio earned its return by making the following investments: Bonds (Lehman Brothers Index) Stocks (S&P 500 Index) Weight 50% 50% Return 5% -1% (a) (3 points) What is the return of the mutual fund? What is the return of the bogey portfolio? Did the mutual fund outperform or underperform the bogey portfolio? (b) (3 points) What is the contribution of asset allocation to the mutual fund's underperformance or overperformance? (c) (3 points) What is the contribution of security selection to the mutual fund's underperformance or overperformance