Roslyn owns a consulting firm and wants to improve the business. Which action is most likely to help her achieve this goal?

A.
decreasing costs by laying off staff
B.
increasing revenues by reducing prices
C.
offering more services
D.
conducting regular customer feedback sessions

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?