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Updated on
18 Sep 2020
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Question about English (US)
What does The telephone survey of 1,025 people aged 18 or older was conducted earlier Thursday, the paper said. It did not provide a margin of error.
(i wanna know about the part ‘It did not provide a margin of error.’) mean?
What does The telephone survey of 1,025 people aged 18 or older was conducted earlier Thursday, the paper said. It did not provide a margin of error.
(i wanna know about the part ‘It did not provide a margin of error.’) mean?
(i wanna know about the part ‘It did not provide a margin of error.’) mean?
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- English (US)
Sorry for how long this explanation is, but they describe it well.
"1 What is the margin of error anyway?
Because surveys only talk to a sample of the population, we know that the result probably won’t exactly match the “true” result that we would get if we interviewed everyone in the population. The margin of sampling error describes how close we can reasonably expect a survey result to fall relative to the true population value. A margin of error of plus or minus 3 percentage points at the 95% confidence level means that if we fielded the same survey 100 times, we would expect the result to be within 3 percentage points of the true population value 95 of those times.
The margin of error that pollsters customarily report describes the amount of variability we can expect around an individual candidate’s level of support. For example, in the accompanying graphic, a hypothetical Poll A shows the Republican candidate with 48% support. A plus or minus 3 percentage point margin of error would mean that 48% Republican support is within the range of what we would expect if the true level of support in the full population lies somewhere 3 points in either direction – i.e., between 45% and 51%. "
https://www.pewresearch.org/fact-tank/2016/09/0...
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In statistical data gathering (like in surveys), "margin of error" is the estimated (+/-) percentage that the data consistency may vary in one direction or the other when it's used to predict a larger/future outcome. It's kind of like a confidence indicator.
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