When you look at a control chart that measures defects in the product produced by your project, you find that seven values are showing up below the mean on the chart. What should you do?

A. Look into the process that is being measured; there’s probably a problem there B. Ignore the anomaly; this is the rule of seven, so statistically the data doesn’t matter C. This means that the mean is too high D. You should adjust your lower control limit—the values indicate a problem with where the limits have been set