In: Statistics and Probability
(a): The sample mean is the median of the data set: False
Becuase mean and median both are different things. mean is used for find average, but median is used for find median value in data set.
(b): The most important use of a control chart is to improve the process by detecting assignable causes.TRUE
Because control chart use control product production and detect out of control or assignable causes problem.
(c): The eventual goal of statistical process control is the elimination of variability in the process.True
Becuase that is the basic principle of statistical process control.
(d): Cause-and-effect diagram is one of the seven major tools called as magnificent seven.True
Because The seven techniques are cause-and-effect diagram, defect concentration diagram, check sheet, Pareto chart, CUSUM control chart, scatter diagram and histogram,
(e): A point that plots outside of the control limits is not evidence that the process is out of control. FALSE
Because A point that plots outside of the control limits is a evidence that the process is out of control.
(f): All the points plot in the control limits, and they appear in a systematic or nonrandom pattern of behavior, this could be an indication that the process is out of control. True.