Three hundred people working in 40 state offices process X120
forms.
To evaluate a proposed change in the X120 form, would you
randomly assign offices or individuals? That is, if offices are
assigned, 15 offices would use the form with the proposed change,
and 15 offices would continue to use the existing form. If
individuals are assigned, roughly 50 percent of the individuals in
the office would use the form with the proposed change, and 50
percent would continue with...