Go to the Vanguard website. Look at funds by asset class, and answer this question for different bond fund durations.
(a) What is the current yield-to-maturity of a taxable Vanguard bond fund invested in Treasury bonds?
(b) What is the current yield-to-maturity of a taxable Vanguard bond fund invested in investment-grade bonds?
(c) What is the current yield-to-maturity of a taxable Vanguard bond fund invested in high-yield bonds?