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 threat, and 22 are extremely concerned about lack of trust of trust in business. 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).
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 threat, and 22 are extremely concerned about lack of trust of trust in business. 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).
Solution Summary: The author calculates a 95% confidence interval for CEOs extremely concerned about cyber threats.
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 threat, and 22 are extremely concerned about lack of trust of trust in business.
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).
Definition Definition Method in statistics by which an observation’s uncertainty can be quantified. The main use of interval estimating is for describing a range that is made by transforming a point estimate by determining the range of values, or interval within which the population parameter is likely to fall. This range helps in measuring its precision.
Calculate and interpret a 95% confidence interval for the proportion of all U.S. adults in April 2013 who felt that economic growth is more important than protecting the environment
According to a poll, 77% of California adults (389 out of 506 surveyed) feel that education is one of the top issues facing California. We wish to construct a 90% confidence interval for the true proportion of California adults who feel that education is one of the top issues facing California.What is a point estimate for the true population proportion?
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