n a survey, 25 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 $19. Construct a confidence interval at a 98% confidence level.
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n a survey, 25 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 $19. Construct a confidence interval at a 98% confidence level.
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