The average time spent sleeping (in hours) for a group of medical residents at a hospital can be approximated by a normal distribution, as shown in tire graph to the right. Answer parts (a) and (b)...

Extracted text: The average time spent sleeping (in hours) for a group of medical residents at a hospital can be approximated by a normal distribution, as shown in tire graph to the right. Answer parts (a) and (b) below. Sleeping Times of Medical Residents Click to view page 1 of the table. Click to view page 2 of the table p= 6.1 hours 6= 1.3 hour 3 9 10 11 Hours (a) What is the shortest time spent sleeping that would still place a resident in the top 5% of sleeping times? Residents who get at least hours of sleep are in the top 5% of sleeping times (Round to two decimal places as needed.) (b) Between what two values does the middle 50% of the sleep times lie? The middle 50% of sleep times lies between hours on the low end and hours on the high end. (Round to two decimal places as needed.)