Due Sunday by 11:59pm Points 12 Submitting an external tool Chapter 8 Confidence Intervals (Sample Size) Progress saved Done Score: 1/12 1/12 answered Question 3 0/1 pt 5 3 We want to obtain a sample to estimate a population mean. Based on previous evidence, researchers believe the population standard deviation is approximately o = 55.2. We would like to be 90% confident that the estimate is within 1 of the true population mean. How large of a sample size is required? n Submit