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Question 20 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

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Question 20 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 $31 and standard deviation of $12. Construct a confidence interval at a 90% confidence level. Give your answers to one decimal place. Question Help: Message instructor Submit

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