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. This process’ rate of defective output is within acceptable limits. C. We aare 99.7% certain that the process is free of non-random variation.

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. This process’ rate of defective output is within acceptable limits.

C. We aare 99.7% certain that the process is free of non-random variation.

Solution

The correction answer is option “B”: This process’ rate of defective output is within acceptable limits, because a process is in control