Mathematics, 30.03.2020 23:37 Tyrant4life

An investor with a stock portfolio worth several hundred thousand dollars sued his broker and brokerage firm because he felt that lack of diversification in his portfolio led to poor performance for many years in a row. In an effort to avoid close public scrutiny, the firm agreed to settle the conflict by an arbitration panel. The arbitration panel compared a sample of 39 months of the investor's returns with the average of the Standard & Poor's stock index for the same period in order to determine whether there was a substantial decrease. The data are recorded in Rate Of Return. xlsx (Links to an external site.). The S&P has a known population mean return of 0.95. Suppose that you are a member of this arbitration panel. Conduct a hypothesis test to determine if the investor's portfolio performed significantly worse than the performance of the S&P. Use a level of significance of LaTeX: \alpha = 0.05a=0.05. What is the P-value for this test

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An investor with a stock portfolio worth several hundred thousand dollars sued his broker and broker...

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