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You have run a regression of returns of ENGEL, a machine tool manufacturer, against the S&P 500 Index using monthly returns over the last 5 years and arrived at the following regression: Return ENGEL =-0.20% + 1.50 Return S&P 500 If the stock had a Jensen's alpha of +0.10% (on a monthly basis) over this period, R squared is 45% If the standard error for beta estimation is 0.2, then what is the best estimate for beta? What is the range of beta using 67% confidence level? What is the ENGEL theoretical performance during the last 5 years? What is the ENGEL actual performance during the last 5 years? Estimate the monthly risk free rate during the last 5 years what is the firm specific risk