A sample of students from an introductory statistics class were polled regarding the number of hours they spent studying for the final exam. All students anonymously submitted the number of hours on a 3 by 5 card. There were 24 individuals in the one section of the course polled. The data was used to make inferences regarding the other students taking the course. Assume that the population is normally distributed. There data are below: 4.5 22 7 14.5 9 9 3.5 8 11 7.5 18 20 7.5 9 10.5 15 19 2.5 5 9 8.5 14 20 8 Compute a 95 percent confidence interval for the mean number of hours spent studying for the final exam. Would you use a t-distribution or z-distribution