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Answer:
Step-by-step explanation:
For this case we have a confidence interval given as a percent:
If we express this in terms of fraction we have this:
We know that the confidence interval for the true proportion is given by:
And thats equivalent to:
We can estimate the estimated proportion like this:
And the margin of error can be estimaed using the fact that the confidence interval is symmetrical
And then the confidence interval in the form desired is:
