In a control chart, the consecutive measurements are 11, 13, 09, 07, 08, 09, 09, 09, 08, and 12. For the entire process, the goal is 10 and the standard deviation is 1.
For this data set, it is correct to say that the process:
A.
is under control.
B.
is out of control.
C.
has an increasing trend.
D.
has a decreasing trend.