Ricardos recipe for 4 loves of bread requires two thirds cup of olive oil . he only wants to make one loaf. ricardo makes a model to find out how much oil he needs to use . he folds a piece of paper into 3 parts and shades 2parts . then he folds the paper into 4 parts and shades one fourths of the shaded parts. ricardo decides he needs one fourths cup of olive oil . is he right ? explain.

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?