Key Points An I-MR chart is a control chart used for process stability. It relies on continuous data. They only provide a single view of your current dataset. While some data are social creatures and ...

Control charts have two general uses in an improvement project. Undeniably, the most common application is as a tool to ...

Select Range Chart. The range chart of the data is displayed, as shown in Display A.8. No points are out-of-control, and the variability across operators is fairly comparable. This indicates that all ...

Control charts usually present a graphic display of process stability and/or instability with time, from which the you can determine mean and standard deviation. Types of Control Charts.

c-chart- control chart for attributes, used to monitor the number of defects per unit . Run test- a test for randomness . Run- sequence of observations with a certain characteristic . Specifications- ...

Figure A.1: Range Chart For example, in Table A.1 the range for operator George, part 1 is calculated as 0.65 - 0.60 = 0.05.Similarly computed ranges are displayed for each operator and each part. You ...