Use the given degree of confidence and sample data to construct a confidence interval for the population proportion p.
-n = 56, x = 30; 95% confidence
A) 0.426 < p < 0.646
B) 0.404 < p < 0.668
C) 0.425 < p < 0.647
D) 0.405 < p < 0.667
Correct Answer:
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