Hard times in june 2010, a random poll of 800 working men found that 9% had taken on a second job to pay the bills. () a) estimate the true percentage of men that are taking on second jobs by constructing a 95% confidence interval. b) a pundit on a tv news show claimed that only 6% of work-ing men had a second job. use your confidence interval to test whether his claim is plausible given the poll data.