The hypotheses that the improvement teams develop are used for what purpose?

[answerhappygod]

To focus their efforts on identifying potential Xs and determining if they have a significant impact on the Y
To brainstorm solutions to the root causes of the problem and set up for the Improve phase
To quantify the cost/benefit of addressing various potential causes
To collect additional Voice of the Customer (VOC) data to determine if customers agree with the potential causes the Team has identified