Question: Need answer for part C. Please workout using equation, not excel. Thanks! Suppose that the index model for stocks A and B is estimated from

Need answer for part C. Please workout using equation, not excel. Thanks!

Need answer for part C. Please workout using equation, not excel. Thanks!

Suppose that the index model for stocks A and B is estimated from excess returns with the following results: RA - 1.5% + 0.55 RM + eA RB = -1.4% + 0.60RM + eB OM = 18%; R-square A = 0.25; R-squares = 0.16 Assume you create a portfolio Q, with investment proportions of 0.50 in a risky portfolio P, 0.30 in the market index, and 0.20 in T-bill. Portfolio P is composed of 60% Stock A and 40% Stock B. a. What is the standard deviation of portfolio Q? (Calculate using numbers in decimal form, not percentages. Do not round intermediate calculations. Round your answer to 2 decimal places.) Standard deviation 12.72 % b. What is the beta of portfolio Q? (Do not round intermediate calculations. Round your answer to 2 decimal places.) Portfolio beta 0.59 c. What is the "firm-specific" risk of portfolio Q? (Calculate using numbers in decimal form, not percentages. Do not round intermediate calculations. Round your answer to 4 decimal places.) Suppose that the index model for stocks A and B is estimated from excess returns with the following results: RA - 1.5% + 0.55 RM + eA RB = -1.4% + 0.60RM + eB OM = 18%; R-square A = 0.25; R-squares = 0.16 Assume you create a portfolio Q, with investment proportions of 0.50 in a risky portfolio P, 0.30 in the market index, and 0.20 in T-bill. Portfolio P is composed of 60% Stock A and 40% Stock B. a. What is the standard deviation of portfolio Q? (Calculate using numbers in decimal form, not percentages. Do not round intermediate calculations. Round your answer to 2 decimal places.) Standard deviation 12.72 % b. What is the beta of portfolio Q? (Do not round intermediate calculations. Round your answer to 2 decimal places.) Portfolio beta 0.59 c. What is the "firm-specific" risk of portfolio Q? (Calculate using numbers in decimal form, not percentages. Do not round intermediate calculations. Round your answer to 4 decimal places.)

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