During the year just$$ ended, Anna$$ Schultz's portfolio, which has a beta of $0\mathrm{.}97,$ earned a return of $8\mathrm{.}6\%.$ The$$ risk$-$free rate is currently $4\mathrm{.}3\%,$ and the return on the market portfolio during the year just ended was $8\mathrm{.}9\%.$

a$.$Calculate$$ Treynor's measure for$$ Anna's portfolio for the year just ended.

b$.$Compare the performance of$$ Anna's portfolio found in part a to that of Stacey$$ Quant's portfolio, which has a$$ Treynor's measure of $1\mathrm{.}39\%.$ Which portfolio performed$$ better? Explain.

c$.$Calculate$$ Treynor's measure for the market portfolio for the year just ended.

d$.$Use your findings in parts a and c to discuss the performance of$$ Anna's portfolio relative to the market during the year just ended.