Use the given degree of confidence and sample data to construct a confidence interval for the population mean . A laboratory tested 90 chicken eggs and found that the mean amount of cholesterol was 225 milligrams with = 13.4 milligrams. Construct a 95 percent confidence interval for the true mean cholesterol content, , of all such eggs. (222, 228) O (223, 229) O(221,227) O (221, 228)