4. [15 points] Pick 2 stocks in the Chinese market of a chosen sector. Obtain their weekly returns for the past 2 years. Estimate the annual required rate of return for both stocks. You may use Shanghai Composite Index (000001) as a proxy for the market return and 2.5% as the annual risk-free rate. Upload your data and working in a separate Excel file. 4. [15 points] Pick 2 stocks in the Chinese market of a chosen sector. Obtain their weekly returns for the past 2 years. Estimate the annual required rate of return for both stocks. You may use Shanghai Composite Index (000001) as a proxy for the market return and 2.5% as the annual risk-free rate. Upload your data and working in a separate Excel file