Question
In a survey, 29 people were asked how much they spent on their child's last birthday...
In a survey, 29 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 $9. Construct a
confidence interval at a 99% confidence level.
Give your answers to one decimal place.
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In a survey, 30 people were asked how much they spent on their child's last birthday...
In a survey, 30 people were asked how much they spent on their
child's last birthday gift. The results were roughly bell-shaped
with a mean of $39 and standard deviation of $10. Construct a
confidence interval at a 80% confidence level.
Give your answers to one decimal place.
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