In a survey, 29 people were asked how much they spent on theirchild's last birthday gift. The results were roughly bell-shapedwith a mean of $33 and standard deviation of $15. Use thetheory-based inference applet to find theconfidence interval at a 99% confidence level. Give youranswers to one decimal place.
- We are 99% confident that the average (mean) amount that peoplespent on their child's last birthday gift, μμ, wasbetween  dollars and  dollars.
- The sample statistic is  dollars.
- The margin of error is  dollars.
- The confidence interval can be written as
dollars ±±  dollars.
