A random sample of 1,000 peope was taken. Six hundred fifty of the people in the sample favored candidate A. What is the 95% confidence interval for the true proportion of people who favor Candidate A?
a) 0.600 to 0.700
b) 0.620 to 0.680
c) 0.623 to 0.678
d) 0.625 to 0.675
