Companies are spending more time screening applicants than in past. A study of 102 recruiters conducted by ExecuNet found that 77 did internet research on candidates.
a.) Develop a 95% confidence interval estimate of the population proportion of recruiters who do interest research on candidates.
b.) Based on (a), is it correct to conclude that more than 70% of recruiters do internet research on candidates?
c.) Suppose that the study uses a sample size of 500 recruiters and 302 did internet research on candidates. Construct a 95% confidence interval estimate of the population proportion of recruiters who do internet research on candidates.
d.) Based on ( c ), is it correct to conclude that more than 70% of recruiters do internet research on candidates?
e.) Discuss the effect of sample size on your answers to (a) through (d).