Question
Asked Nov 5, 2019
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Express the confidence interval (70.4%,80.4%) in the form of ˆp±ME

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Expert Answer

Step 1

It is given that the confidence interval is (70.4%, 80.4%).

Step 2

The point estimate p hat is obtained as follows:

Lower bound Upper bound
p =
2
0.704 0.804
2
= 0.754
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Lower bound Upper bound p = 2 0.704 0.804 2 = 0.754

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Step 3

The margin of error is ob...

Margin of error Upper bound - p
0.804 - 0.754
=0.05
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Margin of error Upper bound - p 0.804 - 0.754 =0.05

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Advanced Topics in Statistics

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