Question

Pew Research Center poll of 1051 randomly selected U.S. adults showed that 70% of the

respondents believe in global warming. The sample results are n = 1051, and sample proportion is
0.70 Find the margin of error E that corresponds to a 95% confidence level.
O 0.27705
O 0.23183
O 0.027705
O 0.023183

Answer 1

Answer: C) 0.0227705

Explanation:

`E=1.96\sqrt{((0.70)(0.30))/(1051)}=0.02770\dots \\`

p = 0.70, n= 1051