please double check answers to A and then answer B!

Consider the two (excess return) index-model regression results for stocks A and B. The risk-free rate over the period was 7, and the market's average return was 15%. Performance is measured using an index model regression on excess returns. Required: a. Calculate the following statistics for each stock: (Do not round intermediate calculations. Round your answers to 4 decimal places:) b. Which stock is the best choice under the following circumstances