Table 4.

Probability that the random draw of the variable of the historical data is larger than the random draw from the variable of the observational data.

Farm ID	ADG	FCR	MR	AMU	Gross margin
1	0.122*	0.333	0.224†	0.755	0.286
2	0.109**	0.352	0.359	0.609	0.672
3	0.683	0.358	0.367	0.354	0.700
4	0.389	0.648	0.630	0.778†	0.370
5	0.273	0.442	0.221†	0.260†	0.234†
6	0.111**	0.556	0.104**	1.000**	0.472
7	0.492	0.258	0.189*	0.470	0.682
8	0.543	0.805*	0.405	0.286	0.276†
9	0.010**	0.750†	0.411	0.495	0.250†
10	0.179*	0.688	0.460	0.598	0.063**
11	0.492	0.754†	0.175*	1.000**	0.698
12	0.578	0.547	0.672	0.719	0.406
13	0.175*	0.333	0.222†	0.619	0.278
14	0.359	0.625	0.688	0.516	0.234†
15	0.381	0.274	0.119*	0.190†	0.810†
16	0.462	0.295	0.269	0.495	0.756†
17	0.740†	0.833*	0.443	0.604	0.177*
18	0.206†	0.794†	0.714	0.778†	0.317
19	0.033*	0.867*	0.317	0.267	0.300
20	0.018**	0.000**	0.125*	0.571	1.000**

ADG, average daily gain; AMU, antimicrobial use; FCR, feed conversion rate; MR, mortality.

^†P ≤ 0.10, *P ≤ 0.05, and **P ≤ 0.01.