A major grocery store chain is trying to cut down on waste. Currently, they get peaches from two different distributors, wholefruits and greengrocer. Out of a two large shipments, the manager randomly selects items from both suppliers and counts the number of items that are not sell-able due to bruising, disease or other problems. She then makes a confidence interval. Is there a significant difference in the quality of the peaches between the two distributors? 95% ci for pw-pg:(-0. 156, 0. 064).