Use the following table: a. Determine the return on a portfolio that was equally invested in large-company stocks and long-term corporate bonds. (Do not round intermediate calculation and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.) b. What was the return on a portfolio that was equally invested in small stocks and Treasury bills? (Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.)