Using the model from Exercise 4-15, change the packer and domestic shipper schedules to stagger the breaks so there are always at least three packers and one domestic shipper working. Start the f rst 15-minute packer break 1 hour into the shift, the 30-minute lunch break 3 hours into the shift, and the second 15-minute break 6 hours into the shift. Start the f rst domestic shipper 15-minute break 90 minutes into the shift, the 30-minute lunch break 3.5 hours into the shift, and the second 15-minute break 6 hours into the shift. Include Resource animations. Compare the new results to those from Exercise