Question: In a start of the twenty-first century saw many corporate scandals and many individuals lost faith in business.In a 2007 poll conducted by new York city-based Edelman public relations firm, 57% of respondents say they trust business to "do what is right." This percentage was the highest in the annual survey since 2001.
(a) Construct a 95% confidence interval estimate of the population proportion of individuals who trust the business to"do what is right"assuming that the poll surveyed:
1.100 individuals.
2.200 individuals.
3.300 individuals.
(b) Discuss the effect that sample size on the width of confidence intervals.
(c) Interprete the interval in (a).