According to a Harris poll conducted in October, 2007, 71% of 1052 American adults believe that increased carbon dioxide and other gases released into the atmosphere will, if unchecked, lead to global warming and an increase in average temperatures. Assuming the population proportion is .75, how many standard deviations above or below the mean does the Harris poll sample fall?
A) 3 below
B) 2.86 below
C) 3 above
D) 2.86 above
E) 0.003 below