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Mathematics, 01.03.2021 22:50 yam78

In a survey, 13 people were asked how much they spent on their child's last birthday gift. The results were roughly shaped as a normal curve with a mean of $40 and standard deviation of $18. Construct a confidence interval at a 98% confidence level. Give your answers to one decimal place.

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In a survey, 13 people were asked how much they spent on their child's last birthday gift. The resul...

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