**Please show all your work!! Thanks

Suppose you estimated a Security Characteristic Line (SCL) for a stock X using the monthly excess returns on A and a proxy for the market portfolio M for the past 5 years: Some of the results from the estimation are given below: r^ext = ax + b_xr^eMt + e_xt Over the 5-year sample period, the average monthly excess return and standard deviation of the market portfolio proxy were 0.5% and 4%. a. Over the 5-year sample period, what was the average monthly excess return on the stock X? Suppose the standard deviation of the stock X over the 5-year sample period was 9%. Decompose the variance of the stock X (sigma^2_x = 9^2 = 81) into the systematic component and firm-specific component . Suppose you invested your entire wealth in the stock X for the past 5 years. Did you outperform the market? Evaluate based on the appropriate measure of performance