I know, I just wanted to add to the contextSwervin_Mervin wrote: ↑Wed May 20, 2020 12:55 pmYeah, I wasn't implying anything by that really. More setting the wider context.NotoriousREV wrote: ↑Wed May 20, 2020 12:52 pmStatistically speaking, with a population size of 300,000, to get an accurate result with a 5% margin of error you only need a sample size of 384, so with a sample size of 29,000, that’s a good indicator of the feeling of the union membership. Even general election polls only use sample sizes of a couple 1000 people.Swervin_Mervin wrote: ↑Wed May 20, 2020 12:32 pm Just to answer my own question of earlier - NASUWT has 300,000 members so the survey results are based on <10% responding ("nearly" 29,000). I can't find the actual published survey results on NASUWT's site though.
Incidentally, the margin of error on 29,000 out of a population of 300,000 is 0.55%