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In a survey of 15 people, it was found that an average of $41 was spent on their child's last birthday gift with a standard
In a survey of 15 people, it was found that an average of $41 was spent on their child's last birthday gift with a standard deviation of $8. Estimate the mean amount people spent on their child's last birthday gift with 99% confidence using the appropriate critical value to three decimal places. Enter your answer as equations or as numbers rounded to four decimal places. Lower bound of CI = Upper bound of CI =
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