Results of a new poll administered by WBUR/MassINC were spread. The poll asked interviewees from Massachusetts for whom they will vote: Republican nominee Donald Trump or Democrat nominee Hillary Clinton.
WBUR/MassINC poll results
Of those who responded, 60.0% said that they intend to vote for former First Lady Hillary Clinton, whereas 31.0% revealed that they would give their vote to billionaire Donald Trump.
This poll was conducted from September 7 to September 10, among a random sample of 506 likely voters. The error margin is +/-4.4 percentage points, which means that the poll results for the Democratic and the Republican candidate differ significantly.
Putting the results in context
As any other method, polls are subject to bias. In general, you should not rely too much on the results of an individual poll. Rather, one should check how a poll's results compare to benchmark forecasts.
To make the results comparable to forecasts from benchmark methods, one can translate them into shares of the two-party vote. The respective figures are 65.9% for Clinton and 34.1% for Trump.
Comparison to other polls
Looking at an average of Massachusetts polls, Clinton's current two-party vote share is at 63.5%. This value is 2.4 percentage points lower than her respective numbers in the WBUR/MassINC poll. This deviation is within the poll's margin of error, which suggests that the poll is not an outlier.
Results compared to the combined PollyVote forecast
The latest PollyVote foresees Clinton to gain 64.7% of the two-party vote in Massachusetts. This means that Polly's prediction is 1.2 points below her polling numbers. The PollyVote forecast is therefore within the poll's sampling error.