6. Find the average of the middle 80% of the following series: 3,7, 39, 41, 57, 84, 91, 95, 110,
144
070.5
067.1
O52.5
057
O 65.5

Select the margin of error that corresponds to the sample mean that corresponds to each population: a population mean of 360, a standard deviation of 4, and a margin of error of 2.5%