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

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