A laboratory tested a sample of 12 chicken egg.s and found that the mean amount of cholesterol was 185 milligrams with a standard deviation of 17.6 milligrams. assume that the population has a normal

A laboratory tested a sample of 12 chicken egg.s and found that the mean amount of cholesterol was 185 milligrams with a standard deviation of 17.6 milligrams. assume that the population has a normal distribution. a) identify the value of each of the following variables n= -x= s= b) Construct a 90% confidence interval for interval for the true population mean cholesterol content of all such eggs and use one decimal place. write your interval in the form ( Lower limit, upper limit) c. What does it matter that the population is assumed to have a normal distribution? Explain briefly