In a less-developed economy, cattle is widely accepted as payment for goods and services. Nearly all goods and services are priced in terms of cattle; however, cows vary in quality, become less valuable with age, and are difficult to move over long distances. Which of the following functions of money do cattle provide? Select the two correct answers. medium of exchange

portability

unit of account

uniformity

store of value

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?