The length of a rectangle, in feet, is represented by (5/4x + 3). The width of a rectangle, in feet, is represented by " (3x – 2). Find the perimeter of the rectangle. (Prec = 2l + 2w)

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?