Question: Use this information to answer Questions 24 - 26: A restaurant wants to make sure that they are serving customers quickly enough. Every day for
Use this information to answer Questions 24 - 26: A restaurant wants to make sure that they are serving customers quickly enough. Every day for 10 days, they sample 16 random customers, and measure how long it is until the waiter shows up. The averages of these samples are given in the table below. This time is known to have the mean of 5 minutes and standard deviation of 2 minutes.
What is the 3-sigma (i.e., z=3) control limits for the process in minutes?
Group of answer choices
LCL =-1, UCL = 11
LCL = 4.5, UCL = 5.5
LCL = 3.5, UCL = 6.5
LCL =4.625, UCL = 5.375
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