Comparing the capability of two processes using the Assistant tool
Multiple capability tools are available in both the Stat menu and the Assistant menu. The Assistant menu comparison tool will run a T-test and a two-variance test to compare the differences between means and standard deviations. The multiple variables capability within the Stat menu tools will allow more datasets to be used, but without the use of T-tests or tests of equal variances to check differences between the populations.
In the following recipe, we will look at comparing the fill volumes of syringes. The worksheet Volume4 uses two columns. The data is held in the columns before and after 75 syringes are measured from the process before a change. After an improvement has been ...
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