consider a 90 percent confidence interval to estimate a population proportion that is constructed from a sample proportion of 66
percent. if the width of the interval is 10 percent, what is the margin of error?
1 answer:
Using confidence interval concepts, it is found that the margin of error is of 5%.
<h3>How is a confidence interval defined?</h3>
- A <em>confidence interval</em> is given by an <u>estimate</u>(sample mean of proportion) <u>plus/minus the margin of error</u>.
- The width of a confidence interval is <u>twice it's margin of error</u>.
In this problem, the width of the interval is 10 percent.
- Considering that the with is twice the margin of error, the margin of error is of 5%.
You can learn more about confidence interval concepts at brainly.com/question/16236451
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