A consulting firm wants to study communication deficiencies in the health care industry. A random sample of 77 health care clinicians reveals the​ following: Time wasted in a day due to outdated...

A consulting firm wants to study communication deficiencies in the health care industry. A random sample of 77 health care clinicians reveals the​ following: Time wasted in a day due to outdated communications technologies: X=54 ​minutes, S=9 minutes. Fifty-eight health care clinicians cite inefficiency of pagers as the reason for the wasted time.

1. Construct a 90​% confidence interval estimate for the population mean time wasted in a day due to outdated communication technologies.

2. Construct a 95% confidence interval estimate for the population mean time wasted in a day due to inefficiency of pagers.

3. Construct a 99% confidence interval estimate for the population mean time wasted in a day due to inefficiency of pagers.