Asmall accounting firm has 4 accountants who has each earn a different salary between $50,000, and $60,000. for extra during tax season , they hire a 5th accountant who earns $10,000. how will hiring the 5th accountant affect the mean and median?

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?