A fast-food franchise tracked the number of errors that occurred in customers' orders. These included wrong menu item, wrong size drink, lack of condiments, wrong price total, and so on. Some orders may have more than one error. In one week, 1250 orders were filled, and a total of 30 errors were discovered. Find the control limits for a c-chart using the equation
UCL=c+3√c
UCL=c-3√c