I am trying to explain the spike shown in week 07/08 of the Cycle Time Report. I ran the Cycle Time Data App based on the parameters below: Discovery/Design (In Progress) to Completed (Accepted) for the week beginning 07/08. The two Stories fitting that criteria had Cycle Times of approximately 28 and 24 days (average of 26 days). Yet the Graph shows an average of 17.5 days. How do I determine what data the Cycle Time Report is using to create the graph segments?
Have you look at the following help page which gives a description of the cycle/lead time?
Team Measurements | CA Agile Central Help
This should provide you with the information you are looking for. If you still have questions please let us know.