The last poll of 144 voters in Iowa shows that 19% of voters will vote for him in the Iowa Presidential Caucus.  What is the 99% confidence interval of his support level in Iowa?

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section11.4: Collecting Data
Problem 5E
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The last poll of 144 voters in Iowa shows that 19% of voters will vote for him in the Iowa Presidential Caucus.  What is the 99% confidence interval of his support level in Iowa?

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