Find the requested condence interval. A college statistics professor has office hours from 9:00 AM. to 10:30 AM. daily. A sample of waiting times to see the professor (in minutes) is 10, 12, 20, 15, 17, 10, 30, 28, 35, 28, 19, 27, 25, 22, 33, 37, 14, 21, 20, 23. Assuming o=7.84, find the 95.44% confidence interval for the population mean. 0 18.8 to 25.8 minutes 0 -7.7 to 7.8 minutes 0 -3.5 to 3.5 minutes ('3 19.5 to 35.1 minutes