Samples results are listed below Construct a 90 confidence interval estimate of the mean What is the practical use of the confidence interval 1 1 2 4 3 3 3 4 4 2 C What is the confidence interval for the population mean 2 3 4 Round to one decimal place as needed What is the practical use of the confidence interval Select the correct choice below and if necessary fill in the answer boxes to complete your choice OA The confidence interval can be used to estimate that 90 of all people have DNA bases between and Round to one decimal place as needed OB The given numbers are just substitutes for the four DNA base names so the numbers do not measure or count anything and they are at the nominal level of measurement The confidence interval has no practical use OC The confidence interval can be used to estimate that with 90 confidence the interval from to actually contains the true mean DNA base of all people Round to one decimal place as needed