About this Quebec poll from Mainstreet Research
This Quebec poll was fielded by Mainstreet Research in September 2018, with a middle field date of September 24, 2018. The poll collected data from a total sample of n=2,721 Quebec respondents via IVR technology (automated calls).
The margin of error [moe] for this poll is estimated at ±1.9%, 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 (September 2018), the Coalition avenir Québec climbs two points from 29% to 31%, the Liberal Party remains stable at 28%, and the Parti Québécois is down one point (variation similar to moe).
You can read more information on this poll here.