If people want to argue that this survey is improper, the sample size if not the route to success. This particular survey lists the following specifications:
The Angus Reid Institute conducted an online survey from Feb. 11-13, 2022 among a representative randomized sample of 1,622 Canadian adults who are members of Angus Reid Forum. For comparison purposes only, a probability sample of this size would carry a margin of error of +/- 2.5 percentage points, 19 times out of 20. Discrepancies in or between totals are due to rounding. The survey was self-commissioned and paid for by ARI.
Anyone can use sample size calculators to duplicate the result. The Survey Monkey calculator comes up with a minimum sample size of 1,537 with those parameters with a population of 40 million, so the Angus Reid survey size of 1622 sounds sufficient..
Calculate sample size with our free calculator and explore practical examples and formulas in our guide to find the best sample size for your study.
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In fact, they show the formula used, and if anyone looks at it carefully, they can see that for large values of the population N, the sample size doesn't change that much. It depends more on the margin of error (+-2.5%) and confidence level (19 time out of of 20 aka 95%.)
Random sampling is a powerful tool and the samples don't need to be nearly as large as people might assume.