Saint Barbara Medical Center - ICU CLABSIsTheir assigned goal was to develop an analysis of this "current state" and to develop strategies to reduce the CLABSI rate to 1.10/1000 Line Days or less. Their team leader had learned that common cause variation analysis could give the team a strong data foundation to allow them to determine how effective any intervention they made had been. Week 3: Data Progress Report Part 1 Student Action: Make a data table that allows common cause variation analysis to be performed, and perform that analysis. Produce a graph showing the actual monthly results through time with the common cause variation range shown as limits on the graph. What do these limits define relative to special cause (post-intervention) results? That is, what amount of change or shift in the monthly results would be required to attribute the change to special rather than common cause?