Dumplings -To-Go (DTG)provides take-out dumplings and noodle dishes to customers at its chain of drive-through restaurants.The target for a customer's waiting time is 3.0 minutes +/- 1 minute.Each month,one of the managers observes the drive-through process and collects a sample of 4 waiting times a day over a 6 day period.The data from one restaurant appears below.If DTG were to construct an X-bar chart from this data,the 3-sigma UCL would be
A)6.44
B)5.87
C)3.50
D)2.82

Question

Dumplings -To-Go (DTG)provides take-out dumplings and noodle dishes to customers at its chain of drive-through restaurants.The target for a customer's waiting time is 3.0 minutes +/- 1 minute.Each month,one of the managers observes the drive-through process and collects a sample of 4 waiting times a day over a 6 day period.The data from one restaurant appears below.If DTG were to construct an X-bar chart from this data,the 3-sigma UCL would be 
A)6.44 
B)5.87 
C)3.50 
D)2.82

Quizplus · Accepted Answer

The Answer of Dumplings -To-Go (DTG)provides take-out dumplings and noodle dishes to customers at its chain of drive-through restaurants.The target for a customer's waiting time is 3.0 minutes +/- 1 minute.Each month,one of the managers observes the drive-through process and collects a sample of 4 waiting times a day over a 6 day period.The data from one restaurant appears below.If DTG were to construct an X-bar chart from this data,the 3-sigma UCL would be 
A)6.44 
B)5.87 
C)3.50 
D)2.82

Dumplings -To-Go (DTG)provides Take-Out Dumplings and Noodle Dishes to Customers