An information technology (IT) consulting firm specializing in healthcare 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• Time wasted in a day due to outdated communication technologies:
X = 45 minutes, S = 10 minutes.
• 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a. Construct a 99% confidence interval estimate for the population mean time wasted in a day due to outdated communication technologies.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 cite inefficiency of pagers as the reason for the wasted time.