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OpenStudy (kj4uts):
A sample with a sample proportion of 0.5 and which of the following sizes will produce the widest 95% confidence interval when estimating the population parameter? A. 70 B. 60 C. 50 D. 80
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OpenStudy (kj4uts):
I think the answer is D. 80 because a larger sample size produces a tighter confidence interval. I just want to check.
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