When No Point Lies Outside the Control Limits of a Chart,we

question 62

Multiple Choice

When no point lies outside the control limits of a chart,we conclude that:

• A) variation in the process is caused by assignable causes and there is enough evidence to infer that the process is in statistical control.
• B) variation in the process is caused by chance and there is enough evidence to infer that the process is out of control.
• C) variation in the process is caused by chance and there is not enough evidence to infer that the process is out of control.
• D) variation in the process is caused by assignable causes and there is not enough evidence to infer that the process is out of control.
• E) None of these.