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. a. What are the two-sigma control limits for these defects?
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. a. What are the two-sigma control limits for these defects?
Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter2: Introduction To Spreadsheet Modeling
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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.a. What are the
two-sigma
control limits for these defects? The
UCLc
equals
_______________
and the
LCLc
equals
____________________
(Enter
your responses rounded to three decimal
places.
If your answer for
LCLc
is negative, enter this value as
0.)
b. A client scheduled a trip to Dallas. Her itinerary contained
five
errors. Interpret this information.The number of defects is within the control limits, so it is assumed that the process is not in control.
The number of defects is within the control limits, so it is assumed that the process is in control.
The number of defects is less then the lower control limit, so the process is not in control.
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