A travel agency is concerned with the accuracy and appearance of itineraries prepared for its clients. Defects can include errors in? times, airlines, flight? numbers, prices, car rental? information, lodging, charge card? numbers, and reservation? numbers, as well as typographical errors. As the possible number of errors is nearly? infinite, the agency measures the number of errors that do occur. The current process results in an average of five errors per itinerary.
What are the three?-sigma control limits for these? defects?
UCLc =
LCLc =