1 In control charts, variable refers to qualitative data and attribute refers to quantitative data.

2 Control charts enhance the study of processes over time.

3 Control charts have 3 lines: A center line, an upper specification limit, and a lower specification limit.

4 An x-bar chart is used to study process variability over time.

5 A capability ratio of 0.5 indicates that the process is capable.

6 Cpk is always less than or equal to Cp.

7 Observing one point outside the 3 sigma control limits may indicate a special cause variation source is present.

8 The Individuals chart is constructed using the average as its centerline, and recorded measurements are plotted as points (dots) on the chart.

9 A negative Cp value indicates that the average is outside the specification limits.

10 Short run control charts use coded measurements based on the nominal dimension.

TRUE OR FALSE