Setting Up to Compute the Margin of Error

Question: STAT homework help
In a survey, 28 people were asked how much they spent on their child's last birthday gift. The results were roughly bell-shaped with a mean of $38 and standard deviation of $4. Find the margin of error at a 80% confidence level. Give your answer to two decimal places.

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Answered By:

Gabrielle M.
The Math Empath - Tutor & Ally

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Written Explanation:

Happy Learning! Peace :)

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