Question: 11.2-33 Question Help The average annual return over the period 1886-2006 for stocks that comprise the S&P 500 is 5%, and the standard deviation of

11.2-33 Question Help The average annual return over the period 1886-2006 for stocks that comprise the S&P 500 is 5%, and the standard deviation of returns is 15%. Based on these numbers, what is a 95% confidence interval for 2007 returns? A. -25%, 25% . 15%, 25% . - 12.5%, 17.5% D. -25%, 35%
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