Suppose analysis of a random sample results in an "in control" determination. Which of the following statements is most appropriate?
A. While non-random variation could be affecting the process, we have insufficient evidence to conclude so
B. We are 99.7% certain that the process is free of non random variation.
C. There is only a 0.03 chance that the process is no longer capable
D. This process rate of defective output is within acceptable limits.
E. None of the above statement is appropriate.