Arope factory produces ropes that have been measured to be able to lift 500 pounds, with a standard deviation of 6 pounds. one monday, the quality department measures the strength of 30 ropes, and finds them to have an average of 480 pounds with a standard deviation of 1 pound. if the plant only ships production that it is 99% sure is able to lift 500 pounds, what does it do with monday’s production?