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For a confidence level, there is a corresponding confidence interval about the mean , that is, the interval [, +] within which values of should fall with probability . ...
Many interpret the “margin of error,” commonly reported for public opinion polls, as accounting for all potential errors from a survey. It does not. There are many non-sampling errors, common to all surveys, that can include effects due to question wording and misreporting by respondents.
Opinion poll. An opinion poll, often simply referred to as a survey or a poll (although strictly a poll is an actual election), is a human research survey of public opinion from a particular sample. Opinion polls are usually designed to represent the opinions of a population by conducting a series of questions and then extrapolating ...
Archived from the original on 2008-10-01. ^ "Rasmussen Reports™: The most comprehensive public opinion coverage ever provided for a presidential election". October 2, 2008. Archived from the original on 2008-10-02. ^ "Gallup Daily: Obama 48%, McCain 45%".
A New York Times/ Siena poll released on Aug. 10 indicated Harris ahead of Trump in Michigan by a 50-46 margin. While that sounds like Harris is leading, look closely at the margin of error, which ...
12%. I watched clips or highlights of the debate. 17%. I read or watched news stories analyzing the debate. 25%. I haven’t heard anything about it. 37%. The prime time debate featured Donald Trump, Jeb Bush, Scott Walker, Mike Huckabee, Ben Carson, Ted Cruz, Marco Rubio, Rand Paul, Chris Christie, Carly Fiorina and John Kasich.
The poll, conducted by USA Today and Suffolk University, found Harris leading with 48 percent to Trump’s 45 percent. The results are within the poll’s 4.4 percent margin of… Harris and Trump ...
Poll source Date Democratic candidate % Republican candidate % Leading by % Sample Size* Margin of Error; Rasmussen Reports/Pulse Opinion Research (Daily Tracking) [141] September 4–6, 2012 Barack Obama 45% Mitt Romney: 46%: 1 1500 LV ±3% American Research Group [142] September 4–6, 2012 Barack Obama 46% Mitt Romney: 49%: 3 1200 LV ±3%