A 90% confidence interval for a population proportion calculated using data from a random sample of size n = 51 is (0.573, 0.787) . Which of the following is the 95% confidence interval calculated from the same data?
A) (0.602, 0.758)
B) (0.620, 0.740)
C) (0.553, 0.807)
D) (0.543, 0.817)
E) (0.486, 0.874)
Correct Answer:
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