Problem 8-10 Suppose that the index model for stocks A and B is estimated from excess returns with the following results: RA = 3.4% + 1.15RM + en RB = -1.5% + 1.3RM + eB OM = 15%; R-squarea = 0.26; R-squares = 0.16 Break down the variance of each stock to the systematic and firm-specific components. (Do not round intermediate calculations. Calculate using numbers in decimal form, not percentages. Round your answers to 4 decimal places.) Risk for A Risk for B Systematic Firm-specific