evidence · which ratios survive an interval

index

Open data, followed all the way down to one person inside it.

Every piece here starts with a public dataset and ends with a story. The numbers can be checked: any figure set in mono opens its own evidence in a column to the right, so you never have to leave the sentence you are reading to find out whether it is true.

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02pieces

02public datasets

271occupations

4,810teenagers

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evidence · which ratios survive an interval

Every cell of the grid, at the source file’s own heavy-user threshold of 3, with a 95% interval from the Katz log method. Rows in orange are the ones whose interval includes 1 — arithmetically correct, and indistinguishable from no difference at all.

cutoff	ratio	95% interval	heavy flagged	others flagged
≥ 5	1.21×	1.14× – 1.28×	1,579	936
≥ 6	1.24×	1.16× – 1.32×	1,390	801
≥ 7	1.27×	1.18× – 1.37×	1,227	691
≥ 8	1.29×	1.19× – 1.40×	1,069	592
≥ 9	1.31×	1.20× – 1.44×	944	514
≥ 10	1.33×	1.21× – 1.47×	827	444
≥ 11	1.33×	1.19× – 1.49×	726	390
≥ 12	1.38×	1.23× – 1.55×	654	339
≥ 13	1.40×	1.23× – 1.59×	585	299
≥ 14	1.43×	1.24× – 1.63×	524	263
≥ 15	1.50×	1.29× – 1.74×	460	220
≥ 16	1.45×	1.24× – 1.70×	414	204
≥ 17	1.50×	1.27× – 1.79×	364	173
≥ 18	1.54×	1.28× – 1.85×	322	150
≥ 19	1.58×	1.30× – 1.91×	302	137
≥ 20	1.59×	1.30× – 1.96×	272	122
≥ 21	1.70×	1.35× – 2.14×	233	98
≥ 22	1.93×	1.50× – 2.48×	213	79
≥ 23	1.95×	1.49× – 2.55×	188	69
≥ 24	2.00×	1.50× – 2.67×	168	60
≥ 25	2.16×	1.58× – 2.95×	154	51
≥ 26	2.45×	1.73× – 3.47×	137	40
≥ 27	2.32×	1.61× – 3.34×	120	37
≥ 28	2.35×	1.59× – 3.47×	105	32
≥ 29	2.60×	1.70× – 3.96×	98	27
≥ 30	2.68×	1.72× – 4.19×	90	24

cells in the whole grid: 130
interval clear of 1: 92 (70.8%)
interval includes 1: 38 (29.2%)
ratio range: 1.147× – 2.967×

The weak cells cluster at the extremes, where the flagged group shrinks to a few dozen teenagers. That is exactly where the most quotable ratios live.

evidence · which ratios survive an interval — kodata