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Table A.1.

250 μm detection statistics above and below LX = 1044 erg s−1 (1037 W) for the LX = 1037 − 1039 W–z = 1 − 3 sample, the LX >  1035 W (> 1042 erg s−1) sample, and the whole sample (Page et al. 2012), in addition to the effect on each by including source number 40.

Sample LX <  1037 W
Source ntotal LX ≥ 1037 W
P(bin) S(bin)
Non-detections Detections p No. 40 Non-detections Detections
LX = 1036 − 1038 W 34 10 0.227 Yes 66 21 1 0.0257 2.23σ
No 65 21 0 4.485 × 10−3 2.84σ
LX >  1035 W 122 23 0.159 Yes 176 30 1 0.0325 2.14σ
No 175 30 0 5.620 × 10−3 2.77σ
Whole sample 149 24 0.139 Yes 205 30 1 0.0585 1.89σ
No 204 30 0 0.0113 2.53σ

Notes. p gives the probability of a detection based upon the detection rate at LX <  1037 W; the last two columns give the binomial probability and significance of this observed number of 250 μm detections or fewer at LX >  1037 W.

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