Hi I really don't understand this question can you help me with the solution?

Question 1: (from chapter 8) An information technology consulting rm specializing in health care solutions wants to study communication deficiencies in the health care industry. A random sample of 70 health care clinicians reveals the following: Time wasted in a day due to outdated communication technologies: Average in munites: 45 tandard deviation in minutes 10 Thirty-six health care clinicians cite inefficiency of pagers as the reason for the wasted time. a. Construct a 99% confidence interval estimate for the population mean time wasted in a day due to outdated communication technologies. b. Construct a 95% confidence interval estimate for the population proportion of health care clinicians who cire inefficienciy of pagers as the reason for the wasted time