Multiple Choice
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?
A) -12.5%, 17.5%
B) -15%, 25%
C) -25%, 35%
D) -25%, 25%
Correct Answer:

Verified
Correct Answer:
Verified
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