The Victoria Bread Company daily delivers multiple orders by truck from its regional distribution centre to stores in the T&T Supermarket chain. One measure of its supply chain performance is the number of late deliveries. The company€™s goal is to make all deliveries within one day, so a delivery is late if it exceeds one day. The total number of late deliveries for each of the past 20 days are as follows:

Construct a c-chart for late deliveries with 3σcontrol limits and indicate if the delivery process was out of control at any time.

Transcribed Image Text:

Late Deliveries Day 16 3 14 19 6. 12 10 8. 14 10 11 12 12 13 15 14 10 15 17 16 16 17 14 18 12 19 18 20