When told the data are from an exponential or Erlang distribution the Six Sigma Black Belt should know that the run chart is preferred over the standard X control chart.
When told the data are from an exponential or Erlang distribution the Six Sigma Black Belt should know that the run chart is preferred over the standard X control chart.
当被告知数据来自于指数函数或服从厄兰分布，6西格玛黑带应了解这时候趋势图优于标准的X控制图。