l) A random digit dialing telephone survey of 880 drivers asked, \"Recalling the last ten trafc lights you drove through, how many of them were red when you entered the intersections?" Of the 880 respondents, 17'1 admitted that at least one light had been red. 3. Give a 95% condence interval for the proportion of al drivers who ran one or more of the last ten red lights they met. b. Nonresponse is a practical problem for this survey only 21.6% of calls that reached a live person were completed. Another practical problem is that people may not give truthful answers. What is the likely direction of the basis: do you think more or fewer than 1T1 of the 880 respondents really ran a red light? Why