We are drawing mary samples at regular intervals from our botting process that has been previously brought in stabstical control: The most current sample point happens to fals outside the upper control limit (+- 3 sigma): Should we: Conthue wen the sampling of the running process and walt to see if another sample point falls out of controil Just one out of control point in a regular sampling procest signifes very inde - there is a high probability of an indidual sample point falling out of the +- 3 sigme control limils just by chance. seeing that we ave sampling regularly. Continue with the sampling - it's just a random common cause driven event that we cannot anticipate or control well. Just suspend sampling for a while and give the process a chance to re-set itself? Stop sampling, slop the process, and search for a special cause