Twenty-four (24) students in a history class were polled regarding the number of hours they spent studying for the last exam. The data was used to make inferences regarding the other students taking the course. There data are below: 4.5 22 7 14.5 9 9 3.5 8 11 7.5 18. 7.5 9 10.5 15 19 2.5 5 9 8.5 14 20 Compute a 95 percent confidence interval of the average number of hours studied. Lower bound: Upper bound: