The rate of positive tests is going up, not down, as the testing is opened up to people without symptoms. For the results reported in the last 24 hours, the positive percentage is 11.6% and for the previous 24 hrs it was over 12%. If the numbers were overestimated, they should be going down now with expanded testing, not going up significantly.
And the DHS table that says the positive percentage is 8% is in error as it should be 10.6%, which brings all of the their conclusions into doubt, especially with shutting down yesterday of the ASU/UofA modeling of pandemic's impact on Arizona. Are they trying to cherry-pick skewed data to back up Ducey's decision to start re-opening Arizona?