What are the minimum, first quartile, median, third quartile, and maximum of the data set? 9, 20, 4, 18, 4, 18, 20, 9 a. minimum 4; first quartile 10; median 16.25; third quartile 19.5; maximum 20 b. minimum 4; first quartile 6.5; median 13.5; third quartile 19.5; maximum 20 c. minimum 4; first quartile 6.5; median 13.5; third quartile 19; maximum 20 d. minimum 4; first quartile 5.25; median 16.25; third quartile 19; maximum 20

Use the given degree of confidence and sample data to construct a confidence interval for the population mean mu . assume that the population has a normal distribution. a laboratory tested twelve chicken eggs and found that the mean amount of cholesterol was 185 milligrams with sequals 17.6 milligrams. a confidence interval of 173.8 mgless than muless than 196.2 mg is constructed for the true mean cholesterol content of all such eggs. it was assumed that the population has a normal distribution. what confidence level does this interval represent?