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Even doubling the sample to 600, as OTX often does, yields a margin of error of plus or minus eight percentage points by Mr. Bruzzese's reckoning.
That yields a margin of error, in measuring the difference between the candidates, of about 1.5 percentage point — smaller than Mr. Obama's current lead in the polling average there.
First, assuming the NBC-11 poll followed all the best practices of having a reliable Latino sample--which it did not--a sample size of just 38 completed interviews yields a margin of error of +/- 16%.
Similar(57)
The margin of error on 45 interviews would yield a margin of error of at least +/- 15%.
The sample size yielded a margin of error of 3.1% of the study with confidence limit of 95% with on-line calculator [ 16].
For the cross-sectional samples we estimated that 130 participants at each time point would yield a margin of error of 0.3 standard deviations for a comparison between anxiety scores at any two time points after correcting for multiple testing.
A 99-cent download typically yields a gross margin of about 30%, which is too thin to make sense unless you're Apple and your focus is selling iPods or you're Amazon and you're trying to use MP3 downloads as a way to expand your appeal among young consumers, Jang said.
Such a margin of yield increase is more than that of hybrid rice over normal rice varieties (≥20%) [ 12].
Allowing for a margin of error, this yielded a pardon rate of between22 percent and 4 percent.
Is there a margin of error?
Polls have a margin of error (duh).
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CEO of Professional Science Editing for Scientists @ prosciediting.com