Question: The table contains data for room turnaround time by the cleaning staff at the BlackJack/Simpson clinic. Sixty-two trials were conducted with three samples apiece. The

The table contains data for room turnaround time by the cleaning staff at the BlackJack/Simpson clinic. Sixty-two trials were conducted with three samples apiece. The clinic manager has heard of a technique called statistical process control and would like to use it to see if the clinic’s room turnaround process is in control.

Develop an x-bar and R chart for the data, and comment on whether the process is in control or out of control.
What does “a process is out of control” mean?

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