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In a survey, 21 people were asked how much they spent on their child's last birthday gift. The results were roughly bell-shaped with a
In a survey, 21 people were asked how much they spent on their child's last birthday gift. The results were roughly bell-shaped with a mean of $35 and standard deviation of $2. Find the margin of error at a 90% confidence level. Give your answer to two decimal places. Submit Question 31 00 hp
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Complex Variables and Applications
Authors: James Brown, Ruel Churchill
8th edition
73051942, 978-0073051949
