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Question 3 A pts Am 2 Hour During a 10-year period, the standard deviation of annual returns on a portfolio you are analyzing was 15 percent a year. You want to see whether this record is sufficient evidence to support the conclusion that the portfolio's underlying variance of return was less than 400, the return variance of the portfolio's benchmark. Formulate nullad alternative hypotheses consistent with the verbal description of your objective. Determine whether the null hypothesis is rejected or not rejected at the 0.05 level of significance. The rejection point for 9 degrees of freedom (95 percent of probability above the value is 3.325. Edit Format Table 12pt Paragraph в I UA 1 -