A forester at a logging company believes that the logging cr…

A forester at a logging company believes that the logging crews working under her are not loading the log trucks with the proper amount of timber when cutting. A fully loaded log truck weighs approximately 40 tons. After weighing 47 log trucks, the forester finds an average weight of 43.9 tons with a standard deviation of 4.1 tons. Find the upper boundary for the 99% confidence interval. Round your answer to the third decimal place.