Question: The average annual return for the S&P 500 from 1886 to 2006 is 5%, with a standard deviation of 15%. Based on these numbers, what
The average annual return for the S&P 500 from 1886 to 2006 is 5%, with a standard deviation of 15%. Based on these numbers, what is a 95% confidence interval for 2007's returns? 0 -25%, 35% 0 -12.5%, 17.5% 0 -25%, 25% -15%, 25%
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