Question

For this problem, carry at least four digits after the decimal in your calculations. Answers may vary slightly due to rounding. In a survey of 1000 large corporations, 256 said that, given a choice between a job candidate who smokes and an equally qualified nonsmoker, the nonsmoker would get the job.

(a) Let p represent the proportion of all corporations preferring a nonsmoking candidate. Find a point estimate for p. (Round your answer to four decimal places.)

(b) Find a 0.95 confidence interval for p. (Round your answers to three decimal places.)

lower limit

upper limit

(c) What is the margin of error based on a 95% confidence interval? (Round your answer to three decimal places.)

Answer 1

c) Margin of error =