Side PanelExpand side panel Discussions List View Topic View Thread Search Discussion 5 View profile card for Angelina Venetz Discussion 5 Angelina Venetz posted Jun 25, 2025 12:59 AM This page automatically marks posts as read as you scroll.Adjust automatic marking as read setting I used ChatGPT for this assignment. For the prompt, I asked, "Give me a statistics problem about a single mean". This problem describes a single mean. The problem: A teacher wants to estimate the average number of hours students in her class study per week. She randomly surveys 10 students, and their average study time is 12 hours with a standard deviation of 3 hours. Construct a 95% confidence interval for the mean number of hours all students in the class study per week What is the upper and lower limits of the 95% confidence interval? - here's example of what you would say if you replied to this discuss - Using the sample mean of 12 hours, the standard deviation of 3 hours, the sample size of 10 students, and a 95% confidence level, the lower limit for the confidence interval would be 9.85 hours with an upper limit of 14.15 hours. To find the upper and lower limits, I used T-stats/one sample/ with summary in StatCrunch. So, we can say "We are 95% confident that the true average number of hours all students in the class study per week is between 9.85 hours and 14.15 hours