Its for AShford Bus 405 final project where I have to construct a well-diversified portfolio using an initial investment of $50,000.

Its for AShford Bus 405 final project where I have to construct a well-diversified portfolio using an initial investment of $50,000. I I need help setting up and completing the actual calculations for the investment portfolio part. We are to calculate quarterly and annualized returns, expected returns, beta of portfolio.