About this Quebec poll from Mainstreet Research
This Quebec poll was fielded by Mainstreet Research in September 2017, with a middle field date of September 13, 2017. The poll collected data from a total sample of n=1,501 Quebec respondents via IVR technology (automated calls).
The margin of error [moe] for this poll is estimated at ±2.5%, 19 times out of 20 (for entire sample only) around the 50%-mark.
If we compare these national numbers with the previous poll from Mainstreet Research (August 2017), the Liberal Party is down one point (variation smaller than moe), the Coalition avenir Québec loses two points from 28% to 26% (variation similar to moe), and the Parti Québécois climbs two points from 24% to 26% (variation similar to moe).
You can read more information on this poll here.