A portfolio generates the following returns over the past 10 years: Year Return (\%) 11 212 3 17 413 577 618 73 83 922 104 Calculate the test statistic to test whether the standard deviation of this portfolio's return is different from the benchmark portfolio standard deviation of 16. Enter answer accurate to 3 decimal places. Bonus thinking question: can you reject the hypothesis that the two standard deviations are equal? (use the CHISQ.INVO spreadsheet function to find the rejection points for your desired test probability)