Phoebe runs a t shirts printing business. she ships the t shirts to retailers in the boxes of 200. she has two automated printing machines that can print designs on t shirts. one machine can print 200 t shirts in 50 minutes. the other machine can print 200 t shirts in 150 minutes. if the two machines work at the same time, they can print 200 t shirts in minutes

Amajor grocery store chain is trying to cut down on waste. currently, they get peaches from two different distributors, whole fruits and green grocer. 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: (0.064, 0.156)