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<div><br></div><div><br></div><div><br></div><div>Jan 24, 2021, 04:13 by allan.mustard@osmfoundation.org:<br></div><blockquote class="tutanota_quote" style="border-left: 1px solid #93A3B8; padding-left: 10px; margin-left: 5px;"><p><span class="font" style="font-family:Helvetica, Arial, sans-serif">A sum of 1,918 total responses means the survey features a 2.24%
confidence interval at the 95% confidence level, and a 2.95%
confidence interval at the 99% confidence level. </span><br></p></blockquote><div>What are assumptions for that? Because given inherently biased samples (biased in way<br></div><div>not allowing for balancing/adjusting - survey is made because demographics are unknown!),<br></div><div>I am pretty sure that it is misleading to include such statistics.<br></div><div><br></div><div>We do not know how strong bias, even type of it and we can only guess how sample<br></div><div>of survey-takers is biased compared to general community (and there is tradictional<br></div><div>problem of people trying to manipulate survey by taking it multiple times,<br></div><div>strategic refusal to answer some questions about demographics or just lying).<br></div><div><br></div><div>For example if some group is overrepresented or underrepresented compared to<br></div><div>demographic of OSM mappers this survey is unable to detect it! <br></div><div><br></div><div>In real situation even with 5 000 people answering it is likely that <br></div><div>real confidence interval may be 20% or 10% of 1% - and we do not know<br></div><div>which one would be correct!<br></div><blockquote class="tutanota_quote" style="border-left: 1px solid #93A3B8; padding-left: 10px; margin-left: 5px;"><div><span class="font" style="font-family:Helvetica, Arial, sans-serif">The URL of the survey
is <a href="https://osmf.limequery.org/281662" class="" rel="noopener noreferrer" target="_blank">https://osmf.limequery.org/281662</a></span><br></div></blockquote><div>Keeping it to repeat request to distribute news about this survey.<br></div><div><br></div> </body>
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