We are receiving a lot of questions about relevant analyses in the Analyse-it Method Validation edition to help in evaluating new diagnostic tests in the fight against COVID-19. Below are some quick links that will help, but contact us if you have questions - we are working as normal.
Also see our latest blog post: Sensitivity/Specificity and The Importance of Predictive Values for a COVID-19 test
Process control charts identify special-causes of variation that need to eliminated to
bring the process under control, so the results are predictable and can be used to determine
the ability of a process to meet customer specifications.
The worksheet is open with some of the data hidden. We will use the
additional hidden data later in this tutorial.
During the installation period of a new automated colorimeter for controlling the
copper content in the plating process control charts can be used to identify
special-causes of variation that need to eliminated to make the process perform
predictably. The Xbar and R charts plot the mean and range of the copper
concentration in the plating pool respectively.