Asked Nov 5, 2019

Express the confidence interval (70.4%,80.4%) in the form of ˆp±ME


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 =
0.704 0.804
= 0.754

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

Step 3

The margin of error is ob...

Margin of error Upper bound - p
0.804 - 0.754

Image Transcriptionclose

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


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