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(Solved): In a survey, 31 people were asked how much they spent on their child's last birthday gift. The resul ...



In a survey, 31 people were asked how much they spent on their child's last birthday gift. The results were roughly bell-shaped with a mean of

$41

and standard deviation of

$11

. Construct a confidence interval at a

99%

confidence level. Give your answers to one decimal place.

+-

Interpret your confidence interval in the context of this problem.



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