g In preparing a report on the economy, we need to esti- Hinng mate the percentage of businesses that plan to hire additional employees in the next 60 days. a) How many randomly selected employers must we contact in 20. order to create an estimate in which we are 98% confident with a margin of error of 5%? sample size will suffice? with a margin of error of only 1%? b) Suppose we want to reduce the margin of error to 3%. What c) Why might it not be worth the effort to try to get an interval