What business, economic, policy, and environmental threats to organization growth are CEOs extremely concerned about? In a survey by PricewaterhouseCoopers (PwC), 57 of 114 U.S. CEOs are extremely concerned about cyber threats, and 22 are extremely concerned about lack of trust in business.

Source: Data extracted from PWC, “US business leadership in the world in 2017,” pwc.to/2kHRGnE.

a. Construct a 95% confidence interval estimate for the population proportion of U.S. CEOs who are extremely concerned about cyber threats.

b. Construct a 95% confidence interval estimate for the population proportion of U.S. CEOs who are extremely concerned about lack of trust in business.

c. Interpret the intervals in (a) and (b).