Imagine you are planning to repaint all the walls in this room, including inside the closet. You have calculated that you have 272 square feet to cover and you will need a total of 7 quarts of paint. After buying the supplies, you finish painting the east wall.
Your friend stops by to see how you are doing and comments that you are less than 25% finished with the painting. Is she correct?

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?