In a survey, 17 people were asked how much they spent on their child's last birthday gift. The results were roughly bell-shaped with a mean of $30 and standard deviation of $10. Find the margin of error at a 90% confidence level. Give your answer to two decimal places.

MATLAB: An Introduction with Applications
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In a survey, 17 people were asked how much they spent on their child's last birthday gift. The results
were roughly bell-shaped with a mean of $30 and standard deviation of $10. Find the margin of
error at a 90% confidence level.
Give your answer to two decimal places.
Transcribed Image Text:In a survey, 17 people were asked how much they spent on their child's last birthday gift. The results were roughly bell-shaped with a mean of $30 and standard deviation of $10. Find the margin of error at a 90% confidence level. Give your answer to two decimal places.
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