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A researcher wants to use a confidence interval to estimate the proportion of college students in...

A researcher wants to use a confidence interval to estimate the proportion of college students in his state who plan to vote in the 2020 presidential election. He plans to randomly sample 120 college students, and plans to construct a 95% or 99% confidence interval. Which of these confidence intervals will be wider, and why?

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_99%. As the level of confidence increases, the width of the confidence interval increases.

_95%. As the level of confidence decreases, the width of the confidence interval increases.

_99%. As the level of confidence decreases, the width of the confidence interval increases.

_95%. As the level of confidence increases, the width of the confidence interval increases.

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Answer #1

99% wider than 95%

99%. As the level of confidence increases, the width of the confidence interval increases.
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