WBUR/MassINC released the results of a new poll, in which respondents from Massachusetts were asked for whom they will vote: Republican Donald Trump or Democrat Hillary Clinton.
WBUR/MassINC poll results
Of those who replied, 60.0% said that they will vote for former Secretary of State Hillary Clinton, whereas 31.0% declared that they would give their vote to billionaire Donald Trump.
The poll was carried out from September 7 to September 10 among 506 likely voters. There is a sampling error of +/-4.4 percentage points. Considering this error margin, the gap between both candidates is statistically significant.
Putting the results in context
Individual polls should be interpreted with caution, because they often include substantial biases. Instead of relying on results from single polls, you should look at combined polls or, even better, the combined PollyVote forecast that includes different methods and data.
For the following analysis, we convert the candidates' raw poll numbers into shares of the two-party vote. The resulting figures are 65.9% for Clinton and 34.1% for Trump.
Results vs. other polls
If we look 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 error margin, which means that the poll is not an outlier.
Results compared to the combined PollyVote prediction
The latest PollyVote forecasts Clinton to gain 64.2% of the two-party vote in Massachusetts. Hence, Polly's forecast is 1.7 points below her polling numbers. The PollyVote forecast is therefore within the poll's error margin.