Due Sunday by 11:59pm Points 12 Submitting an external tool Chapter 8 Confidence Intervals (Sample Size) Score: 0/12 1/12 answered .Question 7 A political candidate has asked you to conduct a poll to determine what percentage of people support her. If the candidate only wants a 4% margin of error at a 90% confidence level, what size of sample is needed? When finding the z-value, round it to four decimal places. Hint: Video ' [+] Question Help: Message instructor Submit