In a survey, 27 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 $13. Construct a confidence...

In a survey, 27 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 $13. Construct a confidence interval at a 90% confidence level.


Give your answers to one decimal place.


 ±±


Interpret your confidence interval in the context of this problem.