One issue at play - I have no answer was timing t
Posted on: April 20, 2017 at 14:33:15 CT
raskolnikov MU
Posts:
188057
Member For:
24.78 yrs
Level:
User
M.O.B. Votes:
0
WI was polled late Oct and Nov 1 and the election was a week off - the Comey thing comes into play there a little bit, but while SOME swing state polling was off - most of the polling was right.
Here is a piece.
The state poll averages in key states of Wisconsin, Michigan and Pennsylvania prior to the election pointed to a Clinton win in each state. Trump won each state (albeit apparently by a very narrow margin in Michigan). The final RealClear Politics average in Pennsylvania was Clinton +1.9. Trump won by 1.2. From a statistical perspective, this difference between poll average and outcome is within the margin of error. In Michigan, the final polling average was Clinton +3.4, and Trump at this point has a very small 0.3 average win. Wisconsin showed the biggest deviation, with the final poll average of a 6.5 Clinton win; Trump won by 1.0. But the four polls used in the Wisconsin average by RealClear Politics were completed on Oct. 27, Oct. 31, Nov. 1 and Nov. 2. The election was Nov. 8, meaning that the predictions in Wisconsin were based on data about a week or more old.