To be included, a study had to compare organic and conventional planting across similarly-sized areas, had to report on the sample size and error margins, and had to use organic methods that complied with the guidelines of certification organisations (such as the UK's Soil Association).
This allows for more accurate and faster reading of the sample and minimises operator error.
How exactly is 1% a representative sample of anything???? That number is less than any reasonable margin of error for anything other than a MASSIVE sample size!
The margin of error for the Palestinian sample is 3 percentage points.
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Results for the full sample have a margin of sampling error of plus or minus 3.9 percentage points, it is larger for subgroups.
The best estimate from the Office of National Statistics is of 100, 000 Scots aged between 16 and 24 looking for work, but that's based on a sample with quite a wide range of error.
This online survey is not based on a probability sample and therefore no estimate of theoretical sampling error can be calculated.
The GOP sample of 306 likely caucus participants had a margin of error of 6 percentage points.
The poll, conducted by Luntz Research Companies involved a nationwide sample of 700 adult Americans, with a margin of error of 3.7%.
The sample of 303 likely Democratic caucus voters has a margin of error of 6 percentage points.
The survey's sampling error is plus or minus 3 percentage points for the overall sample.
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