Multiple Choice
The average annual return for the S&P 500 from 1886 to 2006 is 9.5%, with a standard deviation of 18%. Based on these numbers, what is a 95% confidence interval for 2007's returns?
A) -13.25%, 22.75%
B) -16.5%, 35.5%
C) -26.5%, 45.5%
D) -11.5%, 30.5%
Correct Answer:

Verified
Correct Answer:
Verified
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