You have observed the following retums over time: Year Stock X 2015 14% 2016 20 2017 -12 2018 4 2 2019 21 9 14 Assume that the nsk-free rate is 6% and the market nisk premium 5% a. What are the betas of Stocks X and Y Do not round intermediate calculations. Round your answers to two decimal places. Stock X Stock Y b. What are the required rates of return on Stocks X and Do not found intermediate calculations, Round your answers to two decimal places, Stock X Stock What is the required rate of return on portfolio consisting of B of stock X and 20% of Stock Y? Do not round intermediate calculations. Round your answer to two decimal places, 13 Stock Y 13% honde 8 -3 Market 10% 12 -13