Two web sites launched on the same day. at the end of the first week, the number of visitors to each web site was 25. for the first eight weeks, the number of visitors to each web site increased according to the corresponding rules. web site a: the number of visitors doubled each week. web site b: the number of visitors increased by 150 each week.

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?