Chapter 8 Confidence Intervals (Sample Size) Due Friday by 11:59pm Points 7 Submitting an external tool Chapter 8 Confidence Intervals (Sample Size) Score: 3/7 3/7 answered Question 4 You want to obtain a sample to estimate a population proportion. Based on previous evidence, you believe the population proportion is approximately p = 0.27. You would like to be 90% confident that your esimate is within 2.5% of the true population proportion. How large of a sample size is required? n =