A 95% confidence interval for a population proportion is calculated to be from 0.38 to 0.50.  This means the sample proportion used to construct this interval must be __________  and the margin of error must be ______________. 0.44; 0.12 0.42; 0.05 0.44; 1.96 0.44; 0.06 More information is needed to be able to answer this question.

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