So we're all supposed to be cock-a-hoop because UK unemployment has fallen by 49,000 to 2.51 million (7.8% jobless rate).
So, I downloaded the ONS report linked to in the BBC article (the PDF is at that link), searched the PDF for "confidence" (as in "95% confidence interval") which gets me a link to this xls spreadsheet, and row 9 is the one I'm interested in:
Unemployment (000s, aged 16+) 2,514 ± 86 -49 ± 90 -110 ± 120
The bold stuff is what I'm interested in: it says from July to September unemployment fell to 2.514 million by 49 thousand, and this is the biggy, plus or minus 90 thousand! So that means it could have fallen by as much as 139 thousand or it could even have risen by 41 thousand!
The error in the data (±90) is bigger than the data itself (49)! In other words: the data is shit. But every fucking three months we're supposed to get either fantastically excited or morbidly depressed by some statistical noise. Well, whoop-dee-fucking-doo!
This same shit was dismantled in 2011 in the Bad Science column of the Guardian.
Ha ha, well researched. Of course, the government still plans to cut about half a million more public sector jobs, which puts even 49,000 into context…