An archaeologist is excavating the site of World War I training trenches. She marks the site with a coordinate system constructed from a grid made of string. She finds two artifacts on the site,
one at coordinate (-3, 2) and the other at coordinate (5, 9). How far apart are the locations of
these artifacts? Round your answer to the nearest hundredth of a unit.

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?